Surah Al-Mulk, Verse 29

قُلۡ هُوَ ٱلرَّحۡمَٰنُ ءَامَنَّا بِهِۦ وَعَلَيۡهِ تَوَكَّلۡنَاۖ فَسَتَعۡلَمُونَ مَنۡ هُوَ فِي ضَلَٰلٖ مُّبِينٖ٢٩

qul huwa l-raḥmānu āmannā bihi waʿalayhi tawakkalnā fasataʿlamūna man huwa fī ḍalālin mubīnin

Say, "He is the Most Merciful; we have believed in Him, and upon Him we have relied. And you will [come to] know who it is that is in clear error."