The Sufficient (Vol 1) · Hadith 574 (#Ḥadīth #4)
Chapter 28 | The People whom Allah, the Most Holy, the Most High, has called Mutawassimin (distinguished) in His book are the Imams who are also the straight path
4ـ مُحَمَّدُ بْنُ يَحْيَى عَنِ الْحَسَنِ بْنِ عَلِيٍّ الْكُوفِيِّ عَنْ عُبَيْسِ بْنِ هِشَامٍ عَنْ عَبْدِ الله بْنِ سُلَيْمَانَ عَنْ أَبِي عَبْدِ الله فِي قَوْلِ الله عَزَّ وَجَلَّ إِنَّ فِي ذلِكَ لاياتٍ لِلْمُتَوَسِّمِينَ فَقَالَ هُمُ الائِمَّةُ (عَلَيْهم السَّلام) وَإِنَّها لَبِسَبِيلٍ مُقِيمٍ قَالَ لا يَخْرُجُ مِنَّا أَبَداً.
4. Muhammad ibn Yahya has narrated from al-Hasan ibn Ali al-Kufi from ‘Ubays ibn Hisham from ‘Adallah ibn Sulayman from abu ‘Abdallah who has said the following about the words of Allah, the Most Holy, the Most High. “In this there is evidence (of the Truth) for the distinguished ones.” (15:75) The Imams said, “These people are the Imams and the evidence will never depart us.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).