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The rapid development of e-commerce as part of the broader digital transformation has introduced various new forms of transactions that were not explicitly recognized in classical Islamic jurisprudence. These include digital contracts, non-physical goods, cloud-based services, and electronic payment systems. Such innovations present a range of legal challenges, particularly concerning the validity of contracts, the legal status of digital products, the permissibility and security of electronic payment methods, and the protection of consumers in online transactions. To address these challenges, Islamic scholars have increasingly turned to ijtihad the process of independent reasoning and interpretation—as a methodology capable of providing legal solutions for contemporary issues. This study employs a qualitative approach, primarily through literature review, to examine the foundational principles of ijtihad, various methodological tools, and their applicability to different aspects of e-commerce transactions. The findings demonstrate that ijtihad methods, including qiyās (analogical reasoning), istislāh (consideration of public interest), istihsān (juridical preference), and ‘urf (customary practice), enable Islamic law to remain adaptive and flexible, while still oriented toward justice and public welfare. By applying these methods, Islamic jurisprudence can provide legal certainty, uphold fairness, and ensure that e-commerce practices align with Shariah principles, ultimately fostering trust and ethical behavior in the digital marketplace.

This study aims to explore how gold price volatility influences customers’ investment decisions in Islamic banks within the framework of Islamic values. Employing a qualitative phenomenological approach, the research investigates the perceptions, motivations, and strategies of twelve active customers of Bank Syariah Indonesia in Surabaya through in-depth interviews. The findings reveal that gold price volatility does not necessarily reduce investment interest; instead, it stimulates adaptive and reflective behavior grounded in religious commitment and Islamic financial literacy. Investment decisions are shaped by three main factors: rational risk perception, religious conviction in the permissibility of gold as an Islamic instrument, and trust in the integrity of Islamic financial institutions. Thus, gold price volatility is interpreted not only as an economic signal but also as a social and spiritual phenomenon that fosters financial maturity among investors. The study concludes that faith-driven investment behavior contributes to financial resilience and moral stability amid market uncertainty. These insights enrich the field of Islamic behavioral finance by highlighting the integration of economic rationality and spiritual values in investment decision-making.

This study comprehensively examines the concept of Sharia law by highlighting the main divisions within Islamic law: taklifi law and wadh'I law. Taklifi law encompasses five normative categories: obligation, recommendation, permissibility, makruh, and prohibition, which serve to regulate individual behavior in accordance with Sharia principles. Meanwhile, wadh'iy law emphasizes the causes, conditions, and requirements for the validity of a legal act, thus forming a normative framework that guarantees the validity of an action from an Islamic legal perspective. This study uses a normative approach through a literature review of primary sources of Islamic law, such as the Qur'an, Hadith, and classical and contemporary fiqh literature. The results of the study indicate that the division between taklifi and wadh'iy law is crucial for understanding the structure and complexity of Sharia law, both in terms of the vertical relationship between humans and God and the horizontal relationships between individuals. This study also examines the contemporary issue of plastic surgery from an Islamic legal perspective.  Plastic surgery is permissible for medical purposes, such as reconstruction following an accident, congenital defect, or impaired bodily function, as it aligns with the principles of preserving benefit and eliminating harm. However, plastic surgery solely for aesthetic purposes is considered forbidden, as it constitutes altering God's creation without a sharia (Islamic) justification. This finding confirms that the division of sharia law is not merely theoretical but also relevant in addressing modern issues, including in medical practice, and has important implications for the development of contemporary Islamic law and its application within the national legal context.

This study aims to examine the implementation and compliance with halal principles in pharmaceutical and cosmetic products in Indonesia. The halal aspect in these industries is crucial, as it directly relates to the permissibility of raw materials, production processes, and distribution that are consumed and used by Muslim communities. The research method applied is a literature review, analyzing government regulations, religious fatwas, and relevant previous studies. The findings indicate that the implementation of halal principles covers various aspects, including the selection of raw materials free from prohibited or impure substances, production processes that meet hygiene and halal standards, proper storage, distribution that is separated from non-halal products, and transparent marketing strategies. Producers’ compliance with halal requirements is influenced by several factors, such as growing consumer awareness, the role of government regulations in mandating halal certification, and corporate social as well as ethical responsibility. Nevertheless, there are still obstacles in its application, including the limited understanding of halal standards among certain producers, the lack of halal testing facilities, and certification costs that are considered burdensome for small and medium-sized enterprises. This study emphasizes that the success of halal implementation in pharmaceutical and cosmetic products requires collaboration among all stakeholders, including government bodies, halal certification authorities, industries, and society. Through such synergistic efforts, the sustainability of the halal industry can be ensured while also providing safety, comfort, and spiritual assurance for Muslim consumers in Indonesia.

Murabahah, salam, and istishna' are types of sale and purchase transactions that have conceptually been recognized and applied as contract options in Islamic financial institution products. The National Sharia Council of the Indonesian Ulema Council (DSN-MUI), as the authority in issuing Islamic economic and financial fatwas, has issued rulings concerning these three types of transactions, in which various hadiths on legal rulings (ahkam muamalah) are cited as the basis. This paper aims to examine these hadiths from the DSN-MUI fatwas on murâbahah, salam, and istishna' through two perspectives: the analysis of authenticity (takhrij hadith) and the interpretation of substance (meaning analysis). The results indicate that these hadiths broadly cover key principles of sharia contracts such as mutual consent (ar-ridha), permissibility (al-ibâhah), and public interest (al-mashlahah); the notion of blessings in non-cash transactions (classified as weak hadith majhul category); prohibition of debt payment delays by those able to pay; and the permissibility of salam transactions and down payments (classified as weak hadith mursal category).

This study explores the fatwa of Sheikh Muhammad Arsyad Al Banjari in the book Sabilal Muhtadin regarding the permissibility of eating haliling (field snails) and the prohibition of eating anak wanyi (bee larvae) with a focus on the health perspective. Sheikh Muhammad Arsyad Al Banjari stated that snails are halal food, while bee larvae are considered haram. This study uses a literature study method to analyze the legal basis and health implications of both types of food. The results of the study indicate that snails can be safely consumed if processed properly, because snails are rich in protein and nutrients, but require special attention in processing to avoid the risk of infection from parasites or bacteria. Conversely, consuming bee larvae can pose health risks such as allergic reactions and dangerous toxins, and can have a negative impact on the bee population and ecosystem. The conclusion of this study emphasizes the importance of understanding fatwas from a health and ethical perspective, as well as the need for education regarding food processing practices that are in accordance with sharia principles and modern health standards.

Hadith is one of the pillars of Muslims in carrying out Islamic law. Besides that, hadith is also a sharp weapon for orientalists in bringing down Islam. One of the bases used by orientalists in overthrowing Islam is the hadiths that seem textually contradictory. Hadith that appear to be textually contradictory can cause misunderstandings for the general public if they do not examine them in depth. One example is the hadith narrated by Abū Dāwud which contradicts the permissibility and prohibition of using illicit objects in medicine. Therefore, researchers conducted research on the meaning and completion of the two hadiths. This type of research is qualitative in nature (library research) with descriptive presentation and analysis methods. This research also uses the book of Sunan Abū Dāwud and is assisted by other standard books, then it is analyzed by studying the Mukhtalif al-Ḥadīṡ method of Syaikh Shāliḥ al-Uṡaimin to resolve the two contradictory hadiths. The result of this study is that the two hadiths can be solved using the al-Jam'u method. Based on the compromise of the two hadiths, it is known that the use of illicit objects is permissible with certain considerations and conditions.