The Sufficient (Vol 1) · Hadith 748 (#Ḥadīth #1)
Chapter 63 | Proof that Imamat (leadership with Divine Authority) Continues in the Descendents of the Preceding Imam but not through his Brother or Paternal Uncle or other such Relatives
1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ يُونُسَ عَنِ الْحُسَيْنِ بْنِ ثُوَيْرِ بْنِ أَبِي فَاخِتَةَ عَنْ أَبِي عَبْدِ الله قَالَ لا تَعُودُ الامَامَةُ فِي أَخَوَيْنِ بَعْدَ الْحَسَنِ وَالْحُسَيْنِ أَبَداً إِنَّمَا جَرَتْ مِنْ عَلِيِّ بْنِ الْحُسَيْنِ كَمَا قَالَ الله تَبَارَكَ وَتَعَالَى وَأُولُوا الارْحامِ بَعْضُهُمْ أَوْلى بِبَعْضٍ فِي كِتابِ الله فَلا تَكُونُ بَعْدَ عَلِيِّ بن الحسين (عَلَيْهما السَّلام) إِلا فِي الاعْقَابِ وَأَعْقَابِ الاعْقَابِ.
1. Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus from al-Husayn ibn Thuwayr ibn abu Fakhita from abu‘Abdallah who has said the following. “Imamat (Leadership with Divine Authority) will never go to two brothers after al-Hassan and al-Husayn . It has continued from Ali ibn al-Husayn as Allah, the Most Holy, the Most High has said, “The relatives are closer to each other, according to the Book of God, . .” (33:6) After Imam Ali ibn al-Husayn will only be found in the descendents one after the other.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).