Al-Madāʾinī, Shabāb al-ʿUṣfurī, and a number of others state that Jaʿfar al-Ṣādiq died in the year 148 AH. It has already been noted that he was born in 80 AH. The same dating is given by al-Jiʿābī (1), Abū Bakr ibn Manjawayh, and Abū al-Qāsim al-Lālkāʾī (2); thus his age comes to sixty-eight years—may Allah have mercy on him.
Al-Bukhārī did not cite any of his narrations in the Ṣaḥīḥ itself, but only in the Book of Manners and elsewhere.
Jaʿfar al-Ṣādiq had several children. The eldest was Ismāʿīl ibn Jaʿfar, who died young during his father’s lifetime, in 138 AH, leaving three children: Muhammad, ʿAlī, and Fāṭimah.
Muhammad had only two sons, Jaʿfar and Ismāʿīl.
Jaʿfar fathered Muhammad, while his son Aḥmad died in infancy and left no posterity.
Muhammad ibn Jaʿfar had four sons: Jaʿfar, Ismāʿīl, Aḥmad, and Ḥasan.
Ḥasan begot Jaʿfar, who died in Egypt in 293 AH. Jaʿfar left a son, Muhammad, who in turn had five sons.
Ismāʿīl ibn Muhammad fathered Aḥmad, Yaḥyā, and Muhammad; their brother ʿAlī died young without issue.
Aḥmad produced several sons, among them Ismāʿīl ibn Aḥmad, who died in Egypt in 325 AH.
The descendants of Muhammad ibn Ismāʿīl ibn Jaʿfar were numerous in both Egypt and Damascus. They were catalogued comprehensively by the devout nobleman Abū al-Ḥusayn Muhammad ibn ʿAlī ibn al-Ḥusayn ibn Aḥmad ibn Ismāʿīl ibn Muhammad ibn Ismāʿīl ibn Jaʿfar al-Ṣādiq—known as “the brother of Muḥassin.” He resided in the Bāb Tūmā quarter (3) and died shortly before 400 AH. He also mentioned some of their branch in Kūfah, and he was emphatic in denying that ʿUbayd Allāh al-Mahdī belonged to this noble lineage, composing a treatise to demonstrate that