Battle of Siffin
Jābir ibn ʻAbdullāh ibn ʻAmr ibn Ḥarām al-Anṣāriyy (, d. 697 CE/78 AH) was a prominent companion of Muhammad, the prophet of Islam, and the subsequent Shi'i Imams. He delivered the greeting of the prophet to his second great-grandson, Muhammad al-Baqir. Jabir took part in eighteen campaigns headed by the prophet and fought in the Battle of Siffin led by Ali.