Muḥammad ibn Salāma al-Quḍā'ī (died 454/1062) was a Shafi'i Sunni judge, preacher and historian in the Fatimid Caliphate of North Africa. He was of Iranian origin. Al-Quḍā'ī is known as the author of a seven important works and several others, most important of which are Light in the Heavens and The Treasury of Virtues, which are collections of sermons, hadiths, sayings and other transmitted teachings of Muhammad and of Ali, respectively. One of his original manuscripts has been preserved, a prophetic biography.