Topic summary
Muhammad ibn Ali ibn Abdallah

Muḥammad ibn ʿAlī ibn ʿAbd Allāh ibn ʿal-ʿAbbās or Muḥammad al-Imām (679/80–743) was the father of the two first 'Abbâsid caliphs, Al-Saffah and Al-Mansur, and as such was the progenitor of the Abbasid dynasty.
He was the son of Ali ibn Abd Allah ibn al-Abbas and great-grandson of al-‘Abbas ibn ‘Abd al-Muttalib, the uncle of the Islamic prophet, Muhammad.