Quran 46:7 from Surah Al-Ahqaf on Divine Marvels.
وَإِذَا تُتۡلَىٰ عَلَيۡهِمۡ ءَايَٰتُنَا بَيِّنَٰتٖ قَالَ ٱلَّذِينَ كَفَرُواْ لِلۡحَقِّ لَمَّا جَآءَهُمۡ هَٰذَا سِحۡرٞ مُّبِينٌ
English translation: And when are recited to them Our Verses clear say those who disbelieve of the truth when it comes to them This (is) a magic clear
Transliteration: wa-idha tut'la alayhim ayatuna bayyinatin qala alladhina kafaru lil'haqqi lamma jaahum hadha sih'run mubinun