Arwa al-Sulayhi
Ibrahim was a member of the Hamidi branch of the Banu Hamdan. According to the 12th-century Yemeni historian Umara ibn Abi al-Hasan al-Yamani, he was chosen as chief "dāʿī" by Queen Arwa al-Sulayhi already in 1132, but he was then replaced by the ruler of Aden, Saba ibn Abi'l-Su'ud ibn Zuray, possibly because Ibrahim espoused the Tayyibi sect in the schism with the Hafizis. Tayyibi sources mention none of this, however.