Quran 16:126 from Surah An-Nahl on Divine Marvels.
وَإِنۡ عَاقَبۡتُمۡ فَعَاقِبُواْ بِمِثۡلِ مَا عُوقِبۡتُم بِهِۦۖ وَلَئِن صَبَرۡتُمۡ لَهُوَ خَيۡرٞ لِّلصَّٰبِرِينَ
English translation: And if you retaliate then retaliate with the like of what you were afflicted with [it] But if you are patient surely (it) is better for those who are patient
Transliteration: wa-in aqabtum fa'aqibu bimith'li ma uqib'tum bihi wala-in sabartum lahuwa khayrun lilssabirina