Paying Back Someone Who Has Sinned Against You

Imām Ibn Taimiyyah, may Allāh have mercy on him, said:

You have not paid back a person who has disobeyed Allāh with regard to you [and your rights] with [anything as good] as your having obeyed Allāh with regard to him.

إِنَّ اللَّهَ مَعَ الَّذِينَ اتَّقَوْا وَالَّذِينَ هُمْ مُحْسِنُونَ

Indeed, [special help and support from] Allāh is with those who act upon due fear [of Him, avoiding His prohibitions,] and those who do good [by fulfilling His commands]. (Al-Naḥl, 128)

Majmūʿ Al-Fatāwá, vol. 3, p. 246.