Imam Baqir (a.s) said: "There are three acts with which a Muslim attains honor: forgiving the oppressor, giving to the deprived, and establishing ties with the one who has cut off relations with him."
Imam Sadiq (a.s) quoted on the authority of the Prophet of God (a.s): "Forgive since it will cause you to attain honor. Forgive each other so that God honors you."
Imam Baqir (a.s) said: "Getting sorry that you forgave is better and easier than getting sorry that you punished."
God's Prophet (a.s) said: "If one of your Muslim brothers apologizes and you do not accept his apology, God will establish you a companion who will harm you."