To carry out the legal punishment; and to take revenge on those who transgress Allah’s limits and boundaries

Narrated Aisha:

Whenever the Prophet was given an option between two things, he used to select the easier of the tow as long as it was not sinful;
but if it was sinful, he would remain far from it. By Allah, he never took revenge for himself concerning any matter that was presented to him, but when Allah's Limits were transgressed, he would take revenge for Allah's Sake.

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ مَا خُيِّرَ النَّبِيُّ ﷺ بَيْنَ أَمْرَيْنِ إِلاَّ اخْتَارَ أَيْسَرَهُمَا، مَا لَمْ يَأْثَمْ، فَإِذَا كَانَ الإِثْمُ كَانَ أَبْعَدَهُمَا مِنْهُ، وَاللَّهِ مَا انْتَقَمَ لِنَفْسِهِ فِي شَىْءٍ يُؤْتَى إِلَيْهِ قَطُّ، حَتَّى تُنْتَهَكَ حُرُمَاتُ اللَّهِ، فَيَنْتَقِمُ لِلَّهِ.