Indeed, but a little care is needed: the key Islamic philosophers had a higher profile in educated thought from the Renaissance to the beginning of the Enlighte

Indeed, but a little care is needed: the key Islamic philosophers had a higher profile in educated thought from the Renaissance to the beginning of the Enlightenment, so the simple fact of Smith citing Al-Ghazali is less significant in itself than it might at first appear. Smith was a friend of Hume, who was particularly influenced by Al-Ghazali.