Abu Ubaydah Ma'mar bin al-Muthanna (may Allah have mercy on him) said: Al-Hadrami, the father of al-Ala', was named Abdullah bin Abbad bin Akbar bin Rabi'ah bin Malik bin Arif bin Malik bin al-Khazraj bin al-Sadif. Sayyiduna al-Ala' (may Allah be pleased with him) was the governor appointed by the Prophet (peace and blessings be upon him) over Bahrain; the Prophet (peace and blessings be upon him) passed away while he was still in that post. Al-Ala' (may Allah be pleased with him) died in Bahrain, or while returning from there, in the year 21 AH; it is also said in 14 AH, and it is also said in 15 AH.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15255