Illal Al-Sharaie - Reasons for the Laws - Volume 1 - Part 3 is an essential work by Sheikh Saduq, which continues his detailed analysis of the reasoning and divine wisdom behind the various Islamic laws. In this part, the author presents explanations based on Quranic references, Hadith, and intellectual reasoning, illustrating how these laws reflect the core principles of justice (Adalah) and ethics in Islam. By examining the laws' ethical, social, and spiritual dimensions, Sheikh Saduq highlights how these divine rulings contribute to individual spiritual development and the overall harmony of the community. Part 3 of the series focuses on the interplay between human responsibility and divine command, offering deeper insights into the objectives and benefits of Islamic laws.