Muhammad ibn Ja'far al-Sadiq 9th-century self-declared Caliph of the Muslims (d. 0818) Parents Ḥamīda al-Barbariyya Hamīdah al-Barbariyyah Jaafar Al-Sadiq Children Siblings Abdullah al-Aftah Umm Farwah Bint Jafar Fatima Bint Jafar Asmaa Bint Jafar Al-Abbas ibn Jafar Musa al-Kazim Isma'il ibn Jafar Ali al-Uraidhi ibn Ja'far al-Sadiq Isḥâq ibn Ja'far al-Sadiq