Abū Yūsuf, Yaʿqūb b. Ibrāhīm b. Ḥabīb b. Khunays al-Anṣārī (113–182/731–798), was a famous judge (qāḍī) and one of the founders of the Ḥanafī school of jurisprudence. His forebear was Saʿd b. Bujayr of the Bajīla tribe, who was one of the Companions of the Prophet and …