Ahl al-Hadith
10th century Shi'ite scholar Ibn al-Nadim named eight groups: Maliki, Hanafi, Shafi'i, Zahiri, Imami Shi'ite, Ahl al-Hadith, Jariri and Kharijite. In the 12th century Jariri and Zahiri schools were absorbed by the Shafi'i and Hanbali schools respectively. Ibn Khaldun defined only three Sunni "madhahib": Hanafi, Zahiri, and one encompassing the Shafi'i, Maliki and Hanbali schools as existing initially, noting that by the 14th-century historian the Zahiri school had become extinct, only for it to be revived again in parts of the Muslim world by the mid-20th century.