Sura al-Anfāl 8:63

وَأَلَّفَ بَيْنَ قُلُوبِهِمْ لَوْ أَنفَقْتَ مَا فِى ٱلْأَرْضِ جَمِيعًا مَّآ أَلَّفْتَ بَيْنَ قُلُوبِهِمْ وَلَٰكِنَّ ٱللَّـهَ أَلَّفَ بَيْنَهُمْ إِنَّهُۥ عَزِيزٌ حَكِيمٌ

wa-allafa bayna qulūbihim law anfaqta mā fī l-arḍi jamīʿan mā allafta bayna qulūbihim wa-lākinna allāha allafa baynahum innahu ʿazīzun ḥakīmun

And (moreover) He hath put affection between their hearts: not if thou hadst spent all that is in the earth, couldst thou have produced that affection, but Allah hath done it: for He is Exalted in might, Wise.