Alkarbala AlkarbalaTahdhīb al-Aḥkām (Arabic: تهذيب الأحكام) is one of the Four Major Books of Twelver Shi'a Hadith literature. Compiled by Shaykh al-Ta'ifa Abū Jaʿfar Muḥammad ibn al-Ḥasan al-Ṭūsī, this monumental work focuses primarily on the laws and rulings of Islamic jurisprudence. It is among the most authoritative and relied upon collections within Imamiyyah scholarship and contains narrations relating to worship, transactions, purity, prayer, fasting, and broader aspects of Shariah.