Surah Al-Qalam — Ayah 2 (68:2)
مَآ أَنتَ بِنِعۡمَةِ رَبِّكَ بِمَجۡنُونٖ ٢
English translation (Saheeh International)
You are not, [O Muḥammad], by the favor of your Lord, a madman.
Brief commentary
O Messenger! You are not a madman, due to the messengership Allah has blessed you with. Rather, you are free of the insanity the idolaters accuse you with.