Illal Al-Sharaie - Reasons for the Laws - Volume 1 - Part 1 is a seminal work by Sheikh Saduq that explores the underlying reasons and wisdom behind Islamic laws and practices. In this volume, the author delves into the rationale behind various religious prescriptions, offering insights into the divine wisdom and ethical principles that shape Islamic jurisprudence. The book addresses questions related to the reasons for specific laws, their impact on individual and societal behavior, and their alignment with the broader goals of divine justice (Adalah) and ethical development. Sheikh Saduq’s analysis is grounded in traditional Islamic sources and is aimed at both scholars and laypersons seeking a deeper understanding of Islamic legal theory. This work serves as a foundational text for those interested in the philosophical and practical aspects of Islamic law and its relevance to contemporary issues.