Risālat al-Ḥuqūq
Hadith 47وحق من ساءك أن تعفو عنه وإن علمت أن العفو يضر انتصرت قال الله تبارك وتعالى "ولمن انتصر من بعد ظلمه فأولئك ما عليهم من سبيل
The right of him who does evil to you is that you pardon him. But if you know that your pardon will harm him, you defend yourself. God says, 'Whosoever defends himself after he has been wronged - against them there is no way.' (42:41)