Imamate Does Not Pass between any Two Brothers after al-Ḥasan and al-Ḥusayn عليهما السلام

ʿAbd Allāh b. Jaʿfar, from Muḥammad b. Isḥāq al-Baghdādī, from his paternal uncle, Muḥammad b. ʿAbd Allāh b. Ḥāritha, from Yūnus b. Yaʿqūb, from a man, from Abī ʿAbd Allāh عليه السلام—the man said: “I heard him saying: “Allāh has decreed that He will not invest it in any two brothers after al-Ḥasan and al-Ḥusayn عليهما السلام.”