Isma'il ibn Jafar sixth of the Isma'ili Shia Imams (0721–0751) Parents Fatima Al-Hasan Jaafar Al-Sadiq Children Muhammad ibn Ismail Ali ibn Ismail Siblings Abdullah al-Aftah Umm Farwah Bint Jafar Fatima Bint Jafar Asmaa Bint Jafar Muhammad ibn Ja'far al-Sadiq Isḥâq ibn Ja'far al-Sadiq Ali al-Uraidhi ibn Ja'far al-Sadiq Al-Abbas ibn Jafar Musa al-Kazim