Surah Al-Hajj, ayah 62

ذَٰلِكَ بِأَنَّ ٱللَّهَ هُوَ ٱلۡحَقُّ وَأَنَّ مَا يَدۡعُونَ مِن دُونِهِۦ هُوَ ٱلۡبَٰطِلُ وَأَنَّ ٱللَّهَ هُوَ ٱلۡعَلِيُّ ٱلۡكَبِيرُ ٦٢

Dhālika bi annallāha huwal-haqqu wa anna mā yad'ūna min dūnihī huwal-bātilu wa annallāha huwal-'aliyyul-kabīr

That is because Allāh is the True Reality, and that which they call upon other than Him is falsehood, and because Allāh is the Most High, the Grand.