Quran 42:41 from Surah Ash-Shura on Divine Marvels.
وَلَمَنِ ٱنتَصَرَ بَعۡدَ ظُلۡمِهِۦ فَأُوْلَٰٓئِكَ مَا عَلَيۡهِم مِّن سَبِيلٍ
English translation: And surely whosoever defends himself after he has been wronged then those not (is) against them any way
Transliteration: walamani intasara ba'da zul'mihi fa-ulaika ma alayhim min sabilin