The Peak of Eloquence · Hadith 561 (#Passage #3)
Chapter 128 | Foretelling the capture of Basra and the Mongol conquest
قال الشريف : يومئ بذلك (عليه السلام) إلى صاحب الزّنْج.
as-Sayyid ar-Raḍī says : Amīr al-mu’minīn pointed to the Chief of the Negroes, (Ṣāḥibu’z-Zanj). [1]
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).