The Sufficient (Vol 1) · Hadith 557 (#Ḥadīth #4)
Chapter 23 | The Imams are those who have received Knowledge and it is firmly Established in their Hearts
4ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ يَزِيدَ شَغَرٍ عَنْ هَارُونَ بْنِ حَمْزَةَ عَنْ أَبِي عَبْدِ الله قَالَ سَمِعْتُهُ يَقُولُ بَلْ هُوَ آياتٌ بَيِّناتٌ فِي صُدُورِ الَّذِينَ أُوتُوا الْعِلْمَ قَالَ هُمُ الائِمَّةُ (عَلَيْهم السَّلام) خَاصَّةً.
4. Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from Yazid Sha‘ar from Harun ibn Hamza who has said that he hear abu ‘Abdallah say who has said the following. “In fact, the Quran consists of illustrious verses that exist in the hearts of those who have knowledge. . .” (29:49) ‘They are the Imams exclusive of all others.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).