16:126
وَإِنْ عَاقَبْتُمْ فَعَاقِبُوا۟ بِمِثْلِ مَا عُوقِبْتُم بِهِۦ ۖ وَلَئِن صَبَرْتُمْ لَهُوَ خَيْرٌ لِّلصَّـٰبِرِينَ١٢٦
And if you punish [an enemy, O believers], punish with an equivalent of that with which you were harmed.1 But if you are patient - it is better for those who are patient.
— Saheeh International