The Peak of Eloquence · Hadith 1265 (#Passage #74)
Chapter 20 | To the deputy governor of Basra
ومن كتاب له (عليه السلام) إلى زياد بن أبيه وهو خليفة عامله عبد الله بن عباس على البصرة. وعبد الله عامل أمير المؤمنين يومئذ عليها وعلى كور الأهواز وفارس وكرمان (وغيرها)
To Ziyād ibn Abī (son of his [unknown] father), when ‘Abdullāh ibn al-‘Abbās was the Governor of Baṣrah, the suburbs of Ahwāz, Firs and Kirmān while Ziyād was his deputy in Baṣrah.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).