Quran 22:60 Al-Hajj, ayah 60 of 78

۞ ذَٰلِكَ وَمَنْ عَاقَبَ بِمِثْلِ مَا عُوقِبَ بِهِۦ ثُمَّ بُغِىَ عَلَيْهِ لَيَنصُرَنَّهُ ٱللَّهُ ۗ إِنَّ ٱللَّهَ لَعَفُوٌّ غَفُورٌ ۝٦٠

22:60 That (is so). And whoso hath retaliated with the like of that which he was made to suffer and then hath (again) been wronged, Allah will succour him. Lo! Allah verily is Mild, Forgiving.