وَأَلَّفَ بَيْنَ قُلُوبِهِمْ ۚ لَوْ أَنفَقْتَ مَا فِى ٱلْأَرْضِ جَمِيعًا مَّآ أَلَّفْتَ بَيْنَ قُلُوبِهِمْ وَلَٰكِنَّ ٱللَّهَ أَلَّفَ بَيْنَهُمْ ۚ إِنَّهُۥ عَزِيزٌ حَكِيمٌ
3:104.
Commentary:
The verse is intended to meet any possible demur on the part of believers in the matter of accepting a peace offer made by the enemy. It is no favour of the believers upon God or His Messenger, if they have helped the Prophet; on the other hand, it is God’s favour upon them that He has put affection "between their hearts," for, before their acceptance of Islam they too were enemies of one another.
3:104