The Book of Occultation — al-Ṭūsī · Hadith 545 (#Ḥadīth #28)
Chapter 41 | Approved Emissaries
فهؤلاء جماعة المحمودين، وتركنا ذكر استقصائهم لأنهم معروفون مذكورون في الكتب.
These were some who were praised and approved by the Imams, though we have not mentioned all the companions of the Imams who were as such, because they were well known and their descriptions are present in different books. That is why their mention here as well was not necessary.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).