Say, [O Muḥammad], to those who have believed that they [should] forgive those who expect not the days of Allāh [i.e., of His retribution] so that He may recompense a people1 for what they used to earn.
Translation: Saheeh International (English)
1 In the Hereafter, where those who forgive will be rewarded and those who earned evil will be punished. This was at the outset of daʿwah (invitation to Allāh) before permission for jihād.
O Messenger, say to those who brought faith in Allah and accepted His messengers: “Forgive those who did bad to you from the disbelievers who do not hope for Allah’s reward nor do they fear His punishment, because Allah will reward both the patient believers and the transgressing disbelievers for the actions they used to earn in this world”.