8:63
وَأَلَّفَ بَيْنَ قُلُوبِهِمْ ۚ لَوْ أَنفَقْتَ مَا فِى ٱلْأَرْضِ جَمِيعًا مَّآ أَلَّفْتَ بَيْنَ قُلُوبِهِمْ وَلَـٰكِنَّ ٱللَّهَ أَلَّفَ بَيْنَهُمْ ۚ إِنَّهُۥ عَزِيزٌ حَكِيمٌ
wa-allafa bayna qulūbihim law anfaqta mā fī l-arḍi jamīʿan mā allafta bayna qulūbihim walākinna l-laha allafa baynahum innahu ʿazīzun ḥakīmun
and with the believers, and brought their hearts together. Even if you had given away everything in the earth you could not have done this, but God brought them together: God is mighty and wise.
And He has united their (i.e. believers’) hearts. If you had spent all that is in the earth, you could not have united their hearts, but Allâh has united them. Certainly He is All-Mighty, All-Wise.