The Peak of Eloquence · Hadith 1540 (#Passage #349)
Chapter 54 | To Talha and Zubayr
ذكره أبو جعفر الإسكافي في كتاب المقامات في مناقب أمير المؤمنين عليه السلام
Abū Ja‘far al-Iskāfī has mentioned this in his “Kitāb al-maqāmāt” on the excellent qualities (manāqib) of Amīr al-mu’minīn (peace be upon him).
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).