قُل هُوَ الرَّحمـٰنُ آمَنّا بِهِ وَعَلَيهِ تَوَكَّلنا ۖ فَسَتَعلَمونَ مَن هُوَ في ضَلالٍ مُبينٍ

Say, “He is the Most Merciful. We have believed in Him, and upon Him, we rely. Soon, you will realize who is in glaring error.”