Quran 54:2 from Surah Al-Qamar on Divine Marvels.
وَإِن يَرَوۡاْ ءَايَةٗ يُعۡرِضُواْ وَيَقُولُواْ سِحۡرٞ مُّسۡتَمِرّٞ
English translation: And if they see a Sign they turn away and say Magic continuing
Transliteration: wa-in yaraw ayatan yu'ridu wayaqulu sih'run mus'tamirrun