Al Khisal (The Characteristics) by Sheikh Saduq is a seminal work that compiles traditions and narrations according to numerical groupings, such as traits or virtues found in "twos," "threes," and so forth. This structure provides readers with organized insights into key aspects of Islamic teachings, covering ethics, moral virtues, social relations, and personal character development. Each section reflects the wisdom of the Prophet Muhammad (s.a.w.) and his Ahlul Bayt (a.s.), illustrating the practical application of faith and morality. Through its unique format, Al Khisal serves as a comprehensive reference for Muslims seeking guidance on living a virtuous life aligned with the core principles of Islam.