Surah Ash-Shu'ara, ayah 192

وَإِنَّهُۥ لَتَنزِيلُ رَبِّ ٱلۡعَٰلَمِينَ ١٩٢

Wa innahū latanzīlu rabbil-'ālamīn

And indeed, it [i.e., the Qur’ān] is the revelation of the Lord of the worlds.