Abd Allah al-Radi

Abd Allah al-Radi
Tenth Imam of Isma'ilism
Abd Allah al-Radi Tenth Imam of Isma'ilism
عَبْد ٱللَّٰه الرَّضِيِّ
10th Isma'ili Imam
	In office; 840–881
Preceded by	Muhammad al-Taqi
Succeeded by	Abd Allah al-Mahdi Billah
Title	al-Radi (lit. 'the satisfied one'); al-Zaki (lit. 'the pious one'); al-Muqtada al-Hadi(lit. 'whose example should be followed, and guiding');
Personal
Born	210 AH; (approximately 825); Salamiyah
Died	268 AH; (approximately 881); Salamiyah
Resting place	Salamiyah, Syria
Religion	Shia Islam
Children	Abd Allah al-Mahdi Billah
Parent	Muhammad al-Taqi (father);
Other names	al-Ḥusayn ibn Aḥmad

Abu ʿAlī al-Ḥusayn ibn Aḥmad ibn ʿAbd Allāh ibn Muḥammad ibn Ismāʿīl (Arabic: ابو علي الحسين بن أحمد ٱبْن عَبْد ٱللَّٰه ٱبْن مُحَمَّد ٱبْن إسْماعِيل, c. 825 – 881), also known as al-Zakī (lit. 'the pure'), al-Raḍī (lit. 'the satisfied one') and al-Muqtadā al-Hādī (lit. 'whose example should be followed, and guiding'), was a descendant of the Islamic prophet Muhammad and the tenth of the Isma'ili Imams, succeeding 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 8 years old to his full brother, Sa'id al-Khayr, also known as Abu'l-Shalaghlagh.

With the death of Ja'far al-Sadiq in 148/765, Isma'il (d. 158/775) and Muhammad (d. 197/813), the gravity of persecutions of the Abbasids had considerably increased. The Isma'ili Imams were impelled to thicken their hiding, therefore, the first dawr al-satr came into force from 197/813 to 268/882, wherein the Imams were known as al-a'imma al-masturin (lit. 'the concealed Imams'). The concealment ended with the establishment of the Fatimid caliphate (r. 909–1171).

Abd Allah al-Radi Tenth Imam of Isma'ilism
عَبْد ٱللَّٰه الرَّضِيِّ

10th Isma'ili Imam
In office 840–881
Preceded by	Muhammad al-Taqi
Succeeded by	Abd Allah al-Mahdi Billah

Title	al-Radi (lit. 'the satisfied one') al-Zaki (lit. 'the pious one') al-Muqtada al-Hadi(lit. 'whose example should be followed, and guiding')
Personal
Born	210 AH (approximately 825) Salamiyah
Died	268 AH (approximately 881) Salamiyah
Resting place	Salamiyah, Syria
Religion	Shia Islam
Children	Abd Allah al-Mahdi Billah
Parent	Muhammad al-Taqi (father)
Other names	al-Ḥusayn ibn Aḥmad