The Sufficient (Vol 1) · Hadith 957 (#Ḥadīth #2)
Chapter 85 | The case of those who would claim to be the Imam but is not qualified, the case of those who would reject all or some of the Imams and the case of those who argue in support of one who is not a qualified Imam.
2ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ عَبْدِ الله بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ أَبَانٍ عَنِ الْفُضَيْلِ عَنْ أَبِي عَبْدِ الله قَالَ مَنِ ادَّعَى الامَامَةَ وَلَيْسَ مِنْ أَهْلِهَا فَهُوَ كَافِرٌ.
2. Muhammad ibn Yahya has narrated from ‘Abdallah ibn Muhammad ibn ‘Isa fromAli ibn al-Hakam fromAban from al-Fudayl from abu ‘Abdallah who has said the following. “Whoever would claim to be the Imam and in fact he would not be the Imam he would be a unbeliever.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).