The aim of this article is to present a new witness of Averroes' reception in the Muslim world, in the years that immediately followed his death. Indeed Abū al-Ḥağğāğ al-Miklātī (d. 1237) is an Ašʿarite theologian, who was born in Fez. He is the author of a Quintessence of the Intellects in Response to Philosophers on the Science of Principles in which he aims at refuting the Peripatetic philosophers in their own field, using their own weapons. This article will first attempt to draw the portrait of this atypical theologian. It will then focus on showing that al-Miklātī – although he never mentions his name – is a reader of Averroes and in particular, of his Tahāfut al-Tahāfut, of which he makes various and unexpected uses. A close look at these uses will enable us to better define the nature of al-Miklātī's work. More importantly, this article will try to prove that al-Miklātī provides us with a key passage of Averroes' lost treatise On the Prime Mover. At the heart of the Rushdian criticism of Avicenna's “metaphysical” proof, this passage should throw new light on Averroes' precise understanding of this proof.