Muḥammad ʿAbd Allāh ibn al-Ḥusayn (Arabic: أبو محمد عبد الله بن الحسين; 31 July 874 – 4 March 934), better known by his regnal name al-Mahdī biʾllāh (Arabic:...

his father, Muhammad al-Taqi (d. 840). Before his death in 881, he entrusted the care of his son and successor, Abd Allah al-Mahdi who was then around...

however, al-Qadi al-Nu'man argued that some of these predictions had materialized by the first Fatimid caliph, Abd Allah al-Mahdi Billah, while the...

Imam and occulted Mahdi. The Seveners propagated their faith from their bases in Syria through Da'iyyun. In 899, Abd Allah al-Mahdi Billah announced that...

the birth name Abd al-Rahman. Abd al-Rahman's father was Sa'id ibn al-Husayn, the future Caliph Abd Allah al-Mahdi Billah. Abd al-Rahman's mother was...

uninterrupted line of succession between the first Fatimid caliph, Abd Allah al-Mahdi Billah (r. 909–934), and Ali and Fatima, via Muhammad ibn Isma'il. This...

guided through God Muhammad al-Mahdi Billah (744 or 745 – 785), third Abbasid Caliph of Baghdad Abd Allah al-Mahdi Billah (873–934), founder of the Fatimid...

al-Asghar ibn Husayn (died 680), youngest son of Husayn ibn Ali Abd Allah al-Mahdi Billah (873–934), Isma'ili Imam and founder of the Fatimid Caliphate...

200 militants led by Juhayman al-Otaibi, who had declared his brother-in-law, Muhammad bin abd Allah al-Qahtani, the Mahdi. Traditionally interest in "apocalyptic...

Imam–Caliph Abd Allah al-Mahdi Billah in Salamiyah and were slain by the Qarmatians in 290/902. Before dying in about 212/827–828, Abd Allah had designated...