Twentieth: When a person pardons and overlooks, that act is itself a good deed; from it another good deed is generated, and that second one produces yet another,1 and so on,2 so that his good deeds continue to multiply. For part of the reward of a good deed is a good deed that follows it, just as part of the punishment of a sin is a sin that comes after it. This chain may well become the very cause of his deliverance and everlasting happiness—but if he retaliates and exacts revenge, all of that disappears.
The second foundational principle is gratitude, which consists in acting in obedience to Allah, exalted is He.
Completed by the praise of Allah Almighty and His assistance.
May Allah bless and grant peace to our master Muhammad, his family, and his Companions.