QUICK FACTS
At a Glance
| Full Name | Ali ibn Musa al-Rida |
| Father | Imam Musa al-Kadhim (A.S.) |
| Mother | Known in the sources by several names, including Najma and Tuktam |
| Predecessor | Imam Musa al-Kadhim (A.S.) |
| Successor | Imam Muhammad al-Jawad (A.S.) |
| Resting Place | Mashhad, Iran, at the shrine associated with his burial in Tus |
| Historical Era | Abbasid rule under al-Maʾmun and the aftermath of the civil war between al-Maʾmun and al-Amin |
INTRODUCTION
A Scholar at the Center of a Political Storm
Imam Ali al-Rida (A.S.) inherited a period of intense political change. Historical sources describe him as a transmitter of reports, a jurist who gave legal opinions, and a respected figure in religious discussion. His reputation for learning became especially visible when the Abbasid caliph al-Maʾmun brought him from Medina to Khorasan.
HIS KNOWLEDGE
Learning, Debate and Religious Dialogue
Accounts of al-Rida emphasize his engagement with questions of theology, law and ethics. Al-Maʾmun arranged religious discussions involving Muslim scholars and representatives of other communities. Later literature preserved many debates and sayings attributed to al-Rida, although individual reports vary in historical strength.
THE JOURNEY EAST
From Medina to Marv
From Medina to Marv
In 200–201 AH / 815–816 CE, al-Maʾmun summoned al-Rida toward Marv.
From Medina to Marv
Encyclopaedia Iranica records that the journey passed through Basra, Ahvaz and Fars before reaching Nishapur and then Marv. The journey transformed him from a Medina-based scholar into a central figure in an empire-wide political and religious drama.
HEIR APPARENT
A Reluctant Political Appointment
A Reluctant Political Appointment
In 201 AH / 817 CE, al-Maʾmun designated al-Rida as heir apparent.
A Reluctant Political Appointment
The sources record that al-Rida resisted the proposal before accepting under pressure and stipulated that he would not take an active role in government administration. The appointment created opposition within the Abbasid family and remains one of the most debated episodes of his life.
HIS CHARACTER
Generosity, Restraint and Service
Generosity, Restraint and Service
Traditional biographies emphasize his generosity toward the poor, his courtesy toward visitors and his seriousness in worship.
Generosity, Restraint and Service
The portrait that emerges is of a learned man who did not equate closeness to political power with personal ambition.
HIS PASSING
Death at Tus
Al-Rida died at Tus in 203 AH / 818 CE after a short illness, according to the most reliable chronology cited by Encyclopaedia Iranica. Later traditional accounts commonly attribute his death to poisoning, while the historical sources differ in how firmly they establish responsibility. He was buried near the earlier tomb of Harun al-Rashid at Sanabad, the site that developed into the great shrine of Mashhad.
HIS LEGACY
Scholarship Across Generations
Al-Rida’s legacy combines scholarship, dialogue, moral conduct and the ability to preserve learning in a highly politicized environment. His son, Imam Muhammad al-Jawad (A.S.), succeeded him while still very young, beginning another remarkable chapter in the history of the Imam’s household.
RESEARCH NOTES
Sources & Historical Care
Encyclopaedia Iranica
Detailed historical study by Wilferd Madelung covering birth traditions, the journey to Khorasan, the heir-apparent appointment, debates and death.
Islamic Research Foundation
Extended biographical study of al-Rida’s life, teachings, debates and historical setting.
This profile is part of the Twelve-Imam succession presented on SMAAAQ. Use the linked predecessor and successor names above to continue through the family of the Prophet (S.A.W.W.).
