 ٤ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي نَجْرَانَ عَنْ سُلَيْمَانَ بْنِ جَعْفَرٍ الْجَعْفَرِيِّ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) أَنَّهُ قَالَ لا تَجْتَمِعُ الامَامَةُ فِي أَخَوَيْنِ بَعْدَ الْحَسَنِ وَالْحُسَيْنِ إِنَّمَا هِيَ فِي الاعْقَابِ وَأَعْقَابِ الاعْقَابِ.
 4. Muhammad ibn Yahya has narrated from Muhammad ibn al Husayn from ‘Abd al-Rahman ibn abu Najran from Sulayman ibn Ja‘fari from Hammad ibn ‘Isa from abu ‘Abdallah  who has said the following. “Imamat (Leadership with Divine Authority) does not take place in two brothers after al-Hassan and al-Husayn . It only continues in the descendents of the Imam  generation after the generation.”