Quran

فَلَا تَهِنُواْ وَتَدۡعُوٓاْ إِلَى ٱلسَّلۡمِ وَأَنتُمُ ٱلۡأَعۡلَوۡنَ وَٱللَّهُ مَعَكُمۡ وَلَن يَتِرَكُمۡ أَعۡمَٰلَكُمۡ

So do not weaken and call for peace while you are superior; and Allah is with you and will never deprive you of [the reward of] your deeds