An Nisa’ Ayah 90

إِلَّا ٱلَّذِينَ يَصِلُونَ إِلَىٰ قَوْمِۭ بَيْنَكُمْ وَبَيْنَهُم مِّيثَـٰقٌ أَوْ جَآءُوكُمْ حَصِرَتْ صُدُورُهُمْ أَن يُقَـٰتِلُوكُمْ أَوْ يُقَـٰتِلُواْ قَوْمَهُمْ‌ۚ وَلَوْ شَآءَ ٱللَّهُ لَسَلَّطَهُمْ عَلَيْكُمْ فَلَقَـٰتَلُوكُمْ‌ۚ فَإِنِ ٱعْتَزَلُوكُمْ فَلَمْ يُقَـٰتِلُوكُمْ وَأَلْقَوْاْ إِلَيْكُمُ ٱلسَّلَمَ فَمَا جَعَلَ ٱللَّهُ لَكُمْ عَلَيْهِمْ سَبِيلاً ٩٠ except those who are allies of a people you are bound with in a treaty or those wholeheartedly opposed to fighting either you or their own people. If Allah had willed, He would have empowered them to fight you. So if they refrain from fighting you and offer you peace, then Allah does not permit you to harm them.