Surah At-Tur, ayah 29

فَذَكِّرۡ فَمَآ أَنتَ بِنِعۡمَتِ رَبِّكَ بِكَاهِنٖ وَلَا مَجۡنُونٍ ٢٩

Fadhakkir famā anta bini'mati rabbika bikāhinin walā majnūn

So remind, [O Muḥammad], for you are not, by the favor of your Lord, a soothsayer or a madman.