Wa izaa baddalnaaa Aayatam makaana Aayatinw wal laahu a'lamu bimaa yunazzilu qaalooo innamaa anta muftar; bal aksaruhum laa ya'lamoon
And when We substitute a verse in place of a verse - and Allah is most knowing of what He sends down - they say, "You, [O Muhammad], are but an inventor [of lies]." But most of them do not know.