The Peak of Eloquence · Hadith 1405 (#Passage #214)
Chapter 42 | To the governor of Bahrain, whom he later removed
ومن كتاب له (عليه السلام) إلى عمر بن أبي سلمة المخزومي وكان عامله على البحرين، فعزله، واستعمل النعمان بن عجلان الزرقي مكانه
To ‘Umar ibn Abī Salamah al-Makhzūmī (foster son of the Holy Prophet from Umm al-mu’minīn, Umm Salamah) who was Amīr al-mu’minīn’s Governor of Bahrain, but whom he removed and replaced by an-Nu‘mān ibn Ajlān az-Zuraqī.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).