Quran 24:14 An-Nur, ayah 14 of 64

وَلَوْلَا فَضْلُ ٱللَّهِ عَلَيْكُمْ وَرَحْمَتُهُۥ فِى ٱلدُّنْيَا وَٱلْـَٔاخِرَةِ لَمَسَّكُمْ فِى مَآ أَفَضْتُمْ فِيهِ عَذَابٌ عَظِيمٌ ۝١٤

24:14 Had it not been for the grace of Allah and His mercy unto you in the world and the Hereafter an awful doom had overtaken you for that whereof ye murmured.