۞ ذٰلِكَ وَمَنْ عَاقَبَ بِمِثْلِ مَا عُوْقِبَ بِهٖ ثُمَّ بُغِيَ عَلَيْهِ لَيَنْصُرَنَّهُ اللّٰهُ ۗاِنَّ اللّٰهَ لَعَفُوٌّ غَفُوْرٌ ( الحج: ٦٠ )
Zaalika wa man 'aaqaba bimisli maa 'ooqiba bihee summa bughiya 'alaihi la yansurannahul laah; innal laaha la 'Afuwwun Ghafoor (al-Ḥajj 22:60)
Sahih International:
That [is so]. And whoever responds [to injustice] with the equivalent of that with which he was harmed and then is tyrannized – Allah will surely aid him. Indeed, Allah is Pardoning and Forgiving. (Al-Hajj [22] : 60)
1 Mufti Taqi Usmani
Having said this, whoever afflicts (someone) with a punishment equal to what he was afflicted with (by the latter), and still he (the former) is (again) subjected to aggression (by the latter), Allah will certainly help him. Indeed, Allah is Most-Pardoning, Most-Forgiving.