The book Al-Kāfī (The Sufficient Book) is a Twelver Shīʿī ḥadīth collection compiled by Muhammad ibn Ya‘qūb al-Kulaynī. It is divided into three sections: Usūl al-Kāfī, which is concerned with epistemology, theology, history, ethics, supplication, and the Qurʾān, Furūʿ al-Kāfī, which is concerned with practical and legal issues, and Rawdat (or Rauda) al-Kāfī, which includes miscellaneous traditions, many of which are lengthy letters and speeches transmitted from the Imāms. In total, al-Kāfī comprises 16,199 narrations.