Quran 68:2 from Surah Al-Qalam on Divine Marvels.
مَآ أَنتَ بِنِعۡمَةِ رَبِّكَ بِمَجۡنُونٖ
English translation: Not you (are) by (the) Grace (of) your Lord a madman
Transliteration: ma anta bini'mati rabbika bimajnunin