Arwa al-Sulayhi
Dhu'ayb began his career as a member of the pro-Fatimid, Musta'li "daʿwa" in Yemen, and rose to become an assistant of the local chief missionary ("dāʿī"), Yahya ibn Lamak. Shortly before his death in 1126, Ibn Lamak, after consulting the Sulayhid queen Arwa al-Sulayhi, chose him as his successor.