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.
Now, I have posted an-Nu‘mān ibn ‘Ajlān az-Zuraqī at Bahrain and have released you from that position without anything bad from you nor reproach on you, because you managed the governorship well and discharged the obligations. Therefore, proceed to me when you are neither suspected nor rebuked, neither blamed nor guilty. I have just intended to proceed towards the recalcitrant of Syria and desired that you should be with me because you are among those on whom I rely in fighting the enemy and erecting the pillars of religion, if Allāh wills.