The Sufficient (Vol 1) · Hadith 963 (#Ḥadīth #8)
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.
8ـ الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ جُمْهُورٍ عَنْ صَفْوَانَ عَنِ ابْنِ مُسْكَانَ قَالَ سَأَلْتُ الشَّيْخَ عَنِ الائِمَّةِ قَالَ مَنْ أَنْكَرَ وَاحِداً مِنَ الاحْيَاءِ فَقَدْ أَنْكَرَ الامْوَاتَ.
8. Al-Husayn ibn Muhammad has narrated from Mu‘alla ibn mmd from Muhammad ibn Jumhur from Safwan from ibn Maskan who has said the following. “I the Shaykh (Musa al-Kadhim about the Imams. He said, ‘Whoever would reject any of the living Imams he has rejected the Imams who have passed away also.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).