"There has so far been little scholarly success in de-mystifying the Mu’in al Din legend.’ Unfortunately, there are no reliable histories which refer to Mu‘in al-din. The three contemporary historians do not mention him..... All the raw materials from which the later hagiographers constructed their pictures of Mu‘in al-din have been assembled above. They borrow from each other and elaborate on each other, but their basic resources are to be found in the four texts, Siyar al-Awliya’, Syar al-‘Arifin, the apocryphal malfizat, and the Siyar al-Aqtab."