The Book of Occultation — al-Ṭūsī · Hadith 518 (#Ḥadīth #1)

فمن المحمودين حمران بن أعين:

Among the approved ones is Humran bin Ayyin:

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).