أحمد بن يحيى
Famous examples of Tabaqat literature include Tabaqat al-Hanabilah originally by Ibn Abi Ya'la and then by Ibn Rajab. Tabaqat ul-Mutazilah (as the title suggests, concerned with Islamic theologians of the Mutazilite school) by Ahmad bin Yahya al-Murtada, at-Tabaqat ul-Kubra (about the companions of the Prophet and their successors) by Ibn Sa'd and - more recently - Tabaqat 'Alam ul-Shi'ah (about famous Shi'a scholars] by Aqa Buzurg Tehrani. The case of Ibrahim Hafsi's compendium of works, which are based on the Tabaqat historiographical framework, also demonstrate how the genre is applied in various fields in the Arabo-Islamic civilization and religious disciplines.