قُلْ لِّلَّذِيْنَ كَفَرُوْٓا اِنْ يَّنْتَهُوْا يُغْفَرْ لَهُمْ مَّا قَدْ سَلَفَۚ وَاِنْ يَّعُوْدُوْا فَقَدْ مَضَتْ سُنَّتُ الْاَوَّلِيْنَ ٣٨
Translation
Say to the faithless, if they cease [their belligerence against the Muslims], what is already past shall be forgiven them. But if they resume [their hostilities], then the precedent of the predecessors has already come to pass.