42:41
وَلَمَنِ ٱنتَصَرَ بَعْدَ ظُلْمِهِۦ فَأُو۟لَـٰٓئِكَ مَا عَلَيْهِم مِّن سَبِيلٍ ٤١
Saheeh International
And whoever avenges himself after having been wronged - those have not upon them any cause [for blame].
Tafsir of "Ibn Kathir" (English)
And indeed whosoever takes revenge after he has suffered wrong, for such there is no way (of blame) against them.means, there is no sin on him for taking revenge against the one who wronged him