Abu'l-Qasim Ibn Juzayy al-Kalbi
Imām Abū al-Qāsim Muḥammad ibn Aḥmad ibn Juzayy al-Kalbī al-Gharnāṭī al-Mālikī (693/1294 – 741/1340), is a Maliki scholar who wrote many religious works such as his al-Qawanin al-Fiqhiyyah or "The Laws of Jurisprudence" [1] a comparative manual of the jurisprudence of the four Sunni madhhabs (Maliki, Hanafi, Shafi`i, Hanbali) with emphasis on the Maliki school and notices of the views of the Ẓāhirī school and others. He is also noted for his tafsir of the Qur'an al-Tashil li Ulum al-Tanzil, his book on legal theory Taqrīb al-Wuṣūl ‘ilā ‘Ilm al-Uṣūl or The Nearest of Paths to the Knowledge of the Fundamentals of Islamic Jurisprudence, which he wrote for his son, as well as his treatise on Sufism based on the Qur'an, The Refinement of the Hearts.
It is a mistake to say that one of Abū al-Qāsim ibn Juzayy's teachers was Ibn Rushd al-Ḥafīd (the grandson) Averroes (1126 – 1198), the author of Bidāyat al-Mujtahid and grandson of Abu Al-Walid Muhammad bin Rushd al-Jadd (the grandfather) (d. 1126), the noted Maliki Qadi.
The panegyrist of Yusuf I of Granada, Abū al-Qāsim Ibn Juzayy was martyred in the Battle of Rio Salado in 1340.[2]
He was the father of Muhammad ibn Ahmad ibn Juzayy al-Kalbi al-Gharnati.