Abà « ÿAbd AllÃÂh Jaÿfar ibn ÿAlë al-HÃÂdë (; 226-271 A.H., CE â CE), also derisively known as al-KadhdhÃÂb () in Twelver Shi'ism, was the third son of the tenth Twelver Shi'a Imam, Ali al-Hadi. He claimed to be an imam and established his own sect of followers, to whom he was known as al-Zakë ().
Jafar b. Ali b. Muḥammad was the son of the tenth Imam, Ali al-Hadi and the brother of eleventh Imam Hasan al-Askari. Also, he had one older brother, Muhammad who died before his father's death.
After the death of Ali al-Hadi, Jafar b. Ali claimed Imamate. Twelvers believed that he was immoral. BaháüÃÂs believe that he was a truthful person.
In his defense, his followers claimed that his personality had changed from his youth. Jafar b. Ali's followers came to be known as the JaâÂÂfariyya and al-Askari's followers were known as the Twelvers.
After the death of Hasan al-Askari, even though, al-Askari's mother was still alive, Jafar requested his property. He claimed that his brother never had a son.