Quran 51:39 from Surah Adh-Dhaariyat on Divine Marvels.
فَتَوَلَّىٰ بِرُكۡنِهِۦ وَقَالَ سَٰحِرٌ أَوۡ مَجۡنُونٞ
English translation: But he turned away with his supporters and said A magician or a madman
Transliteration: fatawalla biruk'nihi waqala sahirun aw majnunun