 ٥ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنِ ابْنِ مَحْبُوبٍ عَنِ الْعَلاءِ بْنِ رَزِينٍ عَنْ عَبْدِ الله بْنِ أَبِي يَعْفُورٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ لا يَمُوتُ الامَامُ حَتَّى يَعْلَمَ مَنْ يَكُونُ مِنْ بَعْدِهِ فَيُوصِيَ إِلَيْهِ.
 5. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from ibn Mahbub from al-‘Ala’ ibn Razin from ‘Abdallah ibn abu Ya‘fur from abu ‘Abdallah  who has said the following. “The does not die until he learns who the succeeding Imams is so he would deliver his will to him.”