Abstract
Introduction
The Sharīʿah provides a significant perspective of wealth and guides human beings to acquire and use wealth righteously. It does not allow earning wealth unjustly or unethically. Allah says: “O you who believe! Eat not up your property among yourselves unjustly except it be a trade among you, by mutual consent” (al-Qurʿān, 04:29). Meanwhile, the Sharīʿah emphasizes the protection and usage of wealth to avoid waste or misuse. In this regard, Allah says: “And eat and drink but waste not by extravagance, certainly He (Allah) likes not al-musrifūn (those who waste by extravagance)” (al-Qurʿān, 07:31). Moreover, the Prophet (PBUH) encourages believers to strive to earn income and gain wealth. He says: “Nobody has ever eaten a better meal than that which one has earned by working with one’s own hands” (Al-Bukhārī, 2015).
The concept of wealth from the Sharīʿah perspective can be seen through the various discussions by classical scholars. The concept of wealth as defined by the majority scholars (Mālikī, Shafiʿī, and Ḥambalī) varies from the Ḥanafī school (Al-Buhūtī, 2000; Al-Shāṭibī, 1997; Al-Suyūṭī, 1997; Ibn Nujaim, 1997). The majority scholars describe wealth as something that has value, and it can be exchanged with others, while it has benefits that are permissible in Sharīʿah and it requires compensation if it is damaged by someone other than the owner. Moreover, the Ḥanafī school adds two more features to the concept of wealth, such as storability of the wealth, and it has the characteristics where the instinct of human beings inclines toward it. Moreover, contemporary scholars also strive to advance the concept of wealth based on current developments (Al-Qarahdāghī, 2008; Zaghībah, 2001).
The advancement of technology has seen unprecedented innovation in the internet and technology-based products and facilities. Consequently, the Internet of things (IoT) is increasingly prevalent in contemporary lifestyles, which includes digital assets. Digital assets generally include all types of Internet of things (IoT) that contain value and are in a digital form. The list of digital assets includes documents, pictures, videos, social media accounts, big data, cryptocurrencies, and many more (Banta, 2016; Perrone, 2012; Popescu, 2020). Despite the plethora of digital assets and their daily uses, limited research has been conducted to provide the concept of wealth in the Sharīʿah and its relationship to modern advanced technology-based digital assets.
Contemporary scholars argue the permissibility of cryptocurrency (Bitcoin; Oziev & Yandiev, 2018; Yuneline, 2019). In this regard, the opinions of the scholars can be divided into three groups. The first group of scholars is in a fever of cryptocurrency to be permissible (Adam, 2018; Justin, 2019), the second group is in the view that it can be permissible with certain conditions (Al-Qarahdāghī, 2018; Bakar, n.d.; Kahf, 2019), whereas the third group of scholars is the opponent of cryptocurrency (Abū Ghuddah, 2018; Egypt Fatwa Board, 2017; Selcuk, & Kaya, 2021). The main reasons for the divergencies in their views are the nature of cryptocurrency being decentralized, the volatility of the value, and the protection of the wealth in terms of hacking or, technical problems. In this contention, cryptocurrency (Bitcoin) is still controversial among Sharīʿah scholars and requires intensive and in-depth study.
Moreover, considering a big portfolio, that is, cryptocurrency (Bitcoin), among the zakatable asset can increase the annual zakat collection and it will provide more support to the
Literature Review
The Concept of Wealth in Sharīʿah
The word “wealth” connotates
According to the Ḥanafī school,
Among the contemporary Sharīʿah scholars, ʿAlī Muḥyī al-Dīn al-Qarahdāghī (n.d.) explains
The scholars categorized
Based on the above explanation, the cryptocurrency (Bitcoin) falls under the category of
The Concept of Digital Assets
Since the introduction of the Internet of things (IoT) and the digitalization of regular useful substances, most things are in an electronic or soft copy. With the current development of the financial markets, most financial services tend to have their digital platform and services to provide the best service to customers/consumers. Hence, several significant changes like the introduction of digital currency, electronic wallet, online banking, and so on, are mushrooming worldwide.
A digital asset is a general term that includes anything with value and digital presence. In this sense, digital multimedia or content, files, and so on, are considered digital assets (Dong, 2020). A digital asset is typically referred to as a digital representation of something of value, for which ownership is verified and recorded on a distributed ledger (Arner et al., 2019; Maull et al., 2017).
There are several types of digital assets. In the beginning, images, videos, electronic documents are known as digital assets. Big data, the Internet of things (IoT), and digital commodities such as storage capacity are also digital assets. User accounts such as social media account and other online platform accounts are also considered digital assets as they possess credit and value (Banta, 2016; Popescu, 2020). More importantly, digital assets such as cryptocurrencies are an essential and relevant segment for this research. According to the Securities Commission of Malaysia (SCM, 2020), digital assets “refers collectively to a digital currency and digital token” (p. 4).
Cryptocurrency
Cryptocurrencies are the most developed and first blockchain application. Cryptocurrency is digital money issued without the regulation of central banks. The money is transferred and exchanged without the medium of financial institutions. Cryptographic technologies are used for the cryptocurrency to secure the transaction, maintain the creation of new units, and validate the transfer of assets (Dong, 2020; Houben & Snyers, 2018; Narayanan et al., 2016). It has complete independence of mining, exchange, and transfer to other parties as any country’s central bank does not regulate it. The use of the term “cryptocurrency” varies from one jurisdiction to another. Some countries like Argentina, Thailand, and Australia call it digital currency, while it is called a virtual commodity in Canada, China, and Taiwan, and it is considered a virtual asset in Honduras and Mexico (Global Legal Research Center [GLRC], 2018a, 2018b).
Cryptocurrencies are growing rapidly, which leads to a growing list of cryptocurrencies in the markets. Among the most famous and well-accepted cryptocurrencies are Bitcoins (BTC), Litecoins (LTC), Ethereum (ETH), Ripple (XRP), and Stellar (XLM; Giudici et al., 2020; Le Tran & Leirvik, 2020; Narayanan et al., 2016). The number of cryptocurrency users crossed 65 million at the end of December 2020 (Best, 2021), with over 7 million active users of Bitcoin (SoFi Learn, 2021). Regardless of its faster growth all around the world, researchers, investors, and enthusiasts of cryptocurrency are still exploring the volatility issue of cryptocurrency. Since volatility of cryptocurrency (Bitcoin) is something that indicates the risk for the investors, the accurate modeling and prediction of it has a significant role to play for the investors in making their decision for investment and right portfolio (Bouri et al., 2021). Regarding the volatility of cryptocurrencies, according to Shahzad et al. (2021), it is almost hard for the economic players to avoid cryptocurrencies as a new investment portfolio. However, based on an empirical study conducted by Shahzad et al. (2021), recommends that investors are required to be cautious in their investment in cryptocurrencies since it is a new portfolio, and considering its short history, it is difficult to say about its stability in the future. Additionally, the Bitcoin futures contracts might lead to have more legitimacy and price stability. In regard to the abilities of Bitcoin for hedge and safe haven, the study of Mokni et al. (2021) found that although Bitcoin is not a strong hedge under bearish with respect to economic policy uncertainty (EPU) of the USA, it is a strong hedge and safe haven against the fiscal policy, taxes, national security, and trade policy once the market is bullish.
Figure 1 sheds light on the process and stages that the blockchain and cryptocurrency (Bitcoin) work through to mine and create Bitcoin.

The stages of cryptocurrency (Bitcoin) and blockchain.
Terminologies of blockchain and cryptocurrency
Bitcoins
Bitcoin is a digital asset because its existence, use, and storage are through digital platforms. Satoshi Nakamoto introduced this digital money (Hassan et al., 2020; Narayanan et al., 2016). In 2008, Bitcoin was introduced through a white paper entitled “
Several jurisdictions such as Australia, Canada, France, USA, Singapore, Japan, UK, Switzerland, and Malaysia allow using cryptocurrencies such as Bitcoin, Litecoin, and Altcoin. Some countries like Algeria, Bolivia, Egypt, Morocco, Nepal, Pakistan, and Vietnam ban using, mining, or any transaction through cryptocurrencies. Some countries like Bangladesh, Iran, Thailand, Lithuania, Lesotho, China, and Colombia, do not ban or prohibit the use of cryptocurrencies, however, they restrict the use of cryptocurrencies indirectly to be used by the financial institutions for transactions (GLRC, 2018a). It should be noted that the majority of countries do not regard cryptocurrencies as legal tender except the Isle of Man (GLRC, 2018a). Interestingly, China, Venezuela, Antigua and Barbuda, and Ireland created their own regulated national or regional cryptocurrencies (GLRC, 2018a).
Method
A qualitative research approach is adopted to obtain the objectives of this study. Qualitative research is most suitable for this study since the research highlights the concept of
In regard to data analysis, the research employs an explanatory research approach which helps the researchers to address the subject matter in a broad and deeper understanding (Cooper & Schindler, 2001; Jonker & Pennink, 2010). In this research, the explanatory research approach assists the researchers to elaborate both concepts and to find similarities and differences while looking for the Sharīʿah rules and consequences of cryptocurrencies. Moreover, given the number of cryptocurrencies, this research focuses on studying only Bitcoin to emphasize and analyze the rules and consequences of using this cryptocurrency.
Results and Discussion
Cryptocurrency/Cryptoassets in Different Jurisdictions
To decide whether cryptocurrency can be considered a currency, several characteristics of money or currency should be available. The store of value is one of the features of money that should exist in cryptocurrency, which means purchasing something or any services from now till in the future date. Secondly, there should be a medium of exchange where it should be possible and available by two parties to exchange it for their benefits, that is, the payment of the contract. Lastly, the most important feature is a unit of account where it has to track the gain and loss of the business through mathematical calculations, and it should be able to compare the value with other goods and services (Didenko & Buckley, 2018; Perkins, 2018).
Nabilou (2019) analyzes the position of Bitcoin compared with traditional money. In terms of representing itself virtually or physically, Bitcoin is the currency that represents itself virtually, whereas traditional currency is physical. Furthermore, Bitcoin provides a decentralized transactions facility where it does not need authorization from a central bank regarding regulations and transactions. On the other hand, physical money or banknotes require authorization from the central banks or authorized banks to allow the transaction. Regarding money creation, Bitcoin has a competitive nature while the traditional currency has a monopolistic nature. These properties show the uniqueness of Bitcoin among other currency systems like cash, commodity money (gold), e-money, and so on (Nabilou, 2019).
The decentralization of cryptocurrencies results is expensive because of the absence of a trusted authority and the volatility of the value of cryptocurrency. Many countries are issuing warning notes to the public to educate them about the investment pitfalls and high volatility of cryptocurrencies compared to the actual currencies. However, an individual or organization who wants to invest in cryptocurrencies needs to take the risk at their own and remember that no legal support is offered in the event of loss.
Looking at the many countries’ perception and interaction with cryptocurrencies, most countries regard cryptocurrencies as digital commodity/digital assets rather than legal tender/banknotes or digital money. In this regard, the Bank of England states that since cryptocurrencies are not easily used like other currencies, cryptocurrencies are considered cryptoassets or digital commodities instead of currency (Ali et al., 2014; Bank of England, n.d.). Moreover, some countries such as Australia and Canada (GLRC, 2018b) consider that cryptocurrencies can be dealt with like barter arrangements to impose a tax on them when digital currencies are involved in the transaction. Switzerland generally considers cryptocurrencies as digital assets. Cantons of Zug and Ticino (two cantons of Switzerland) use cryptocurrencies as means of payment. In addition, the Isle of Man and Mexico (Dewey, 2018) advance the digital currencies to another level giving them a similar level of national currency as means of payment.
Digital Assets and the Concept of Wealth in the Sharīʿah
Classical scholars have two different definitions of wealth (
Similarly, contemporary scholars like ʿAlī Muḥyī al-Dīn al-Qarahdāghī (n.d.) and Hashim Kamali (as cited in Ahmed, 2016) describe
The cryptocurrency (Bitcoin) should meet all the criteria and features discussed above for it to be
Cryptocurrencies are available for mining in many countries to create new blocks and for purchase and use for any transaction that allows cryptocurrencies as an option for payment, which meets the criteria of being available for possession and acquisition. Cryptocurrency users can possess them through mining or purchase and keep them in their e-wallet (Baur et al., 2018; Nian et al., 2015). Moreover, as long as cryptocurrency is available in financial markets, people can use and benefit from it to meet their needs such as buying a car (BBC News, 2020), booking hotels, and buying airline tickets (Kiesnoski, 2021) similar to credit cards, debit cards, and cash. In terms of being capable of storing and transferring, cryptocurrency has the strong capacity to be stored in a blockchain system and transferred through an e-wallet from one user to another (Jokić et al., 2019). The cryptocurrency user normally has two keys, one is a private key that proves the ownership of the cryptocurrency and can be used for spending, while the public key is used to receive the cryptocurrency from others. The user can share the public key with others to receive cryptocurrency but not the private key as it should be kept secret (Narayanan et al., 2016).
One of the important criteria for
Therefore, the criteria or requirements set by classical and contemporary scholars to constitute
Several studies reveal different opinions among the Muslim scholars where some permit cryptocurrency (Bitcoin), while others oppose it (Asif, 2018; Siswantoro et al., 2020; Yuneline, 2019). At the same time, some scholars opine that cryptocurrency can be treated as currency like fiat currency, while some scholars reject cryptocurrency as currency. The scholars in favor of the permissibility of cryptocurrency include Mohd Daud Bakar (n.d.), ʿAlī el-Garī (Justin, 2019), Faraz Adam (2018), whereas ʿAbd Sattār Abū Ghuddah (2018), ʿAlī Muḥyī al-Dīn al-Qarahdāghī (2018), Dār al-Iftā al-Miṣriyyah (Egypt Fatwa Board, 2017), the High Council of Religious Affairs of Turkey (2017 as cited in Selcuk, & Kaya, 2021) are scholars and
According to ʿAlī el-Garī (Justin, 2019), cryptocurrency (Bitcoin) is like other currency, for example, fiat currency. The tradition of money evolves from stones, barter trading to gold and silver, then from gold and silver to paper money (fiat currency). Modern technology has transformed it to digital currency like Bitcoin. The blockchain system makes it more secure than other transactions such as SWIFT (Society for Worldwide Interbank Financial Telecommunication). Similarly, Faraz Adam (2018) finds that an acceptable system is enough to consider something as currency in the Sharīʿah. He views that the value of cryptocurrency and its monetary use come from the purchase, acceptance, and exchange of people. Based on the
Moreover, Mohd Daud Bakar (n.d.) highlights that a cryptocurrency is a new form of financial transaction exchange based on cryptography and blockchain systems. Moreover, it is a medium of exchange for a certain group of people while its characteristics do not meet the criteria to be money or currency. However, he opines that it can be currency or money if many countries and central banks regulate and consider it currency.
On the other hand, Dār al-Iftā al-Miṣriyyah (Egypt Fatwā Board, 2017) issued a
ʿAbd Sattār Abū Ghuddah (2018) finds that the trading of cryptocurrency is against the objective of the Sharīʿah (
Based on the above views, it seems that the permissibility of the cryptocurrency varies depending on its being regulated by the central bank. Cryptocurrency differs from other currencies as it is not centralized by the central banks. Moreover, many scholars discuss the creation of cryptocurrency without having intrinsic value and question the volatility of the cryptocurrency. Despite the criticism against cryptocurrency, the development of cryptocurrencies makes it easy to understand the evolution of money and its uses in different ways while adopting advanced technologies. According to the researchers, cryptocurrency can be regarded permissible, and it can be a currency for several reasons as follows:
Considering the Sharīʿah’s perspective of money, the centralization of money is not a fundamental or essential criteria of money. Dirham and dīnār were not controlled by the Prophet (PBUH) nor by his caliphs during the early age of Islam (Mohamad & Sifat, 2017). However, some scholars consider centralization as a protection of wealth as the government protects the people’s wealth from misfortune in financial activities. In that case, the blockchain system is more secure than fiat currency. It is almost impossible to hack and hijack cryptocurrency (Bitcoin) from the blockchain system, and the supply of Bitcoin is also known to all Bitcoin holders (Hassan et al., 2020), which underscores the transparency level of cryptocurrency. In addition, the
The mining of cryptocurrency and its usage could be free from
As for now, the cryptocurrency (Bitcoin) does not have an independent standard value where the value of cryptocurrency is determined by fiat currency. Based on that, one of the criteria of the
The value of cryptocurrency comes from the use and trust of users through the blockchain system for the mining and creating new cryptocurrencies or doing any transaction by cryptocurrency. Moreover, competition among the users to mine cryptocurrency, the programing language, its complexity, and the coin production rate are three drivers for the value of cryptocurrency (Hassan et al., 2020). The difference in cryptocurrency is that it is not recognized by central banks or any country to have its value endorsed by an authority similar to fiat money. It is well-known that fiat money is also issued without the backing of assets while being recognized by the authority as currency (Guadamuz & Marsden, 2015; Wang et al., 2020). Meanwhile, gold is limited and no one knows whether they can mine more gold and supply it to the market for vast economic use. In that case, cryptocurrency, although it is presently limited, it can be mined to create more cryptocurrency in the future.
Since many scholars think that cryptocurrency can be currency if the government/central bank issue it, the researchers opine that the evolution of most currencies was highly selective where not everything was considered a currency, but once the needs and benefits were clear, it was considered a currency, and the government/central banks authorized it. Similarly, cryptocurrency is still in its infancy, and it might take more time to demonstrate its benefits and use for the public. Then, the government/central banks may consider cryptocurrency as currency or at least digital currency backed by suitable assets. Thus, cryptocurrency will find its way to be a currency internationally based on national regulations.
Regarding the highly volatile nature of cryptocurrency, most currency, including gold, has a volatile nature based on supply and demand. If cryptocurrency experiences speculation, it will not be rendered impermissible given that other currencies such as gold and silver also face speculation and are not impermissible (Abu-Bakar, 2017). Moreover, Bitcoin may have less volatility once it becomes more familiar and matures in the market (Nian & Chuen, 2015).
Cryptocurrency is a digital currency that does not have a physical existence like fiat money. If fiat money can be currency without having intrinsic value, cryptocurrency can also be a currency as it fulfills conditions like government authorization and other necessary requirements of currency (Al-Qarahdāghī, 2018; Bakar, n.d.).
Cryptocurrencies are called digital assets or cryptoassets because its use differs from traditional currencies where the traditional currencies are in every corner of the world while cryptocurrencies are still used by a small segment of people with knowledge of technology and digital finance. In addition, the highly volatile nature of cryptocurrencies makes it complicated to track the price and evaluate. The nature of being decentralized perhaps does not support the level of trust and use. Moreover, the creation of cryptocurrencies through mining is expensive, consumes much electricity, and requires specialized hardware to operate the mining process and other activities (Mukhopadhyay et al., 2016). However, giving ample time to the development of cryptocurrency may resolve most of those issues in the near future and prove that cryptocurrency deserves to be a currency.
Cryptocurrencies face some risks and challenges due to their nature as being part of the Internet of Things (IoT). The highest risk that cryptocurrency has for its digital nature is the total system failure or technological collapse in case of war or any other disasters. Moreover, the cryptocurrency also leads to high energy consumption for proof of work using sophisticated hardware. Another challenge that cryptocurrency might face is the attack by hackers on the blockchain system and this is due to its vulnerability to attack by malicious pool members or pool operators (Fauzi et al., 2020). In response to these risks and challenges, in terms of security, the cryptocurrency can be stored in a storage that is not connected to the internet, a Universal Serial Bus (USB) device, or a computer without an internet connection. Keeping them in different storages also protects cryptocurrency from unwanted hacking and other issues of losing them. The rapid development of cryptocurrency might solve other issues such as accidentally transferring cryptocurrency to the wrong account. Regarding the challenges of cryptocurrencies, the electricity consumption can be reduced through proof of activity (PoA) as suggested by Bentov et al. (2014) which combines the proof of work and proof of stake, and at the same time, it also strengthens the security of the cryptocurrency. Moreover, any substance or a system has its intrinsic value and risk (
Considering cryptocurrency (Bitcoin) as a currency will imply the rule of currency in the Sharīʿah. In such a case, the rule of
Regarding the Sharīʿah compliance of Bitcoin, an approval from a Sharīʿah committee is required in order to scrutinize whether the requirements are fulfilled or not in terms of its being a digital asset or currency. The Sharīʿah committee might assist the owners of Bitcoin in other Sharīʿah issues like preventing from
Therefore, considering the Sharīʿah requirements of asset and money (currency) and the above argument provided by the researchers, this research regards Bitcoin as a digital asset that can be a digital currency with some conditions, as mentioned earlier. Figure 2 provides the list of requirements that digital asset needs to fulfill to be an asset from the Sharīʿah perspective.

Islamic concept of asset and digital asset (Bitcoin).
Based on the concept of

Islamic concept of money (currency) and digital asset (Bitcoin).
As mentioned earlier that Islam did not introduce any specific currency however, it guides the believers in terms of dealing with it. Through the classical and contemporary scholars’ views, it is found that there are certain features that Sharīʿah considers in regard to the currency/money matters such as
Conclusion
Wealth is subject to detailed rules and regulations in the Sharīʿah. Based on the above discussion, the study concludes that the Sharīʿah considers something as wealth which has value, and the Sharīʿah does not prohibit it. The Sharīʿah scholars emphasize the concept of wealth providing its various characteristics and benefits. The majority school of thought (Mālikī, Shafiʿī, and Ḥambalī) considers something as wealth in the Sharīʿah based on its value and its benefits, whereas the Ḥanafī school regards something as wealth whereby human nature tends to own it and that thing can be stored or acquired. The development of wealth and its concept has seen revolutionary changes, and modern technology is giving it a virtual and smart shape. The things that are available on the internet have obtained significant value and acceptance from people. The digital asset is an example of asset/wealth that is well-accepted by many, providing many benefits to the people similar to the physical assets.
Moreover, a digital asset like Bitcoin has received notable attention from many people and currently, it is considered a virtual currency/virtual asset for many countries. In such a case, based on the study, the researchers find that the digital asset, particularly Bitcoin, meets many characteristics of wealth as set by the Sharīʿah and Bitcoin has the value of the virtual currency. This is because Bitcoin has value among the people, has the
Moreover, giving ample time to the development of digital assets, especially Bitcoin, may find its way to be a better alternative than fiat currency. The findings of this study will assist the cryptocurrency enthusiast and investors to know whether the cryptocurrency (Bitcoin) meets the Sharīʿah principles or not and the way of dealing with such digital assets from the Sharīʿah perspective. The researchers will be benefitted from the arguments provided by the authors, and they will find some room for further studies on the matter. Moreover, the policymakers and Sharīʿah scholars will find the discussion as a basis to consider for upcoming guidelines, resolutions, and policy documents of digital assets, especially cryptocurrency (Bitcoin). The novelty and limitations of this study are that it discusses the digital assets from the Sharīʿah perspective and highlights the possibilities of considering digital assets, especially Bitcoin, as currency, and this research excludes other types of cryptocurrencies such as Ethereum, Litecoin, Binance Coin, and so on. Future research may include the issues and challenges of using Bitcoin as a currency and whether the investment in cryptocurrency is permissible from the Sharīʿah perspective. Future research might also consider to discuss whether cryptocurrencies are zakatable assets or not.
