Wa laqad na'lamu annahum yaqooloona innamaa yu'allimuhoo bashar; lisaanul lazee yulhidoona ilaihi a'ja miyyunw wa haaza lisaanun 'Arabiyyum mubeen
Surely We know well that they say about you: "It is only a human being who teaches him," (notwithstanding) that he whom they maliciously hint at is of foreign tongue, while this (Qur'an) is plain Arabic speech.
