Surah Al-Qalam, ayah 2

مَآ أَنتَ بِنِعۡمَةِ رَبِّكَ بِمَجۡنُونٖ ٢

Mā anta bini'mati rabbika bimajnūn

You are not, [O Muḥammad], by the favor of your Lord, a madman.