Arwa al-Sulayhi
Dhuʾayb ibn Mūsā al-Wādiʿī al-Hamdānī (; died April 29, 1151 CE in Hooth, Yemen) was the first "dāʿī al-muṭlaq", a position of spiritual authority in Tayyibi Isma'ili Islam. He was appointed to the position by Queen Arwa al-Sulayhi.