Abd Allah al-Mahd

Abū Muḥammad ʿAbd Allāh ibn al-Ḥasan ibn al-Ḥasan ibn ʿAlī ibn Abī Ṭālib al-Hāshimī al-Qurashī (Arabic: أبو محمد عبد الله بن الحسن بن الحسن بن علي بن أبي طالب الهاشمي القرشي; c. 689 – 762, better known as ʿAbd Allāh al-Maḥḍ (Arabic: عبد الله المحض) and ʿAbd Allāh al-Kāmīl (Arabic: عبد الله الكامل), was an Islamic scholar, theologian and hadith narrator, grandson of both Hasan ibn Ali and Husayn ibn Ali (the grandsons of the Islamic prophet Muhammad). His sons include Muhammad and Ibrahim, who rebelled against Abbasid rule, and Idris, who rebelled in the Maghreb and established the Idrisid dynasty.

Considered a martyr among the Shi'as, Abd Allah was imprisoned on the orders of Al-Mansur after he refused to reveal the hiding place of his sons, and was assassinated three years later while in prison. His tomb in the city of al-Shinafiyah, Iraq, is today the famous shrine of Abd Allah Abu Najm.