Qur'an 8:63 · Al-Anfaal

وَأَلَّفَ بَيْنَ قُلُوبِهِمْ ۚ لَوْ أَنفَقْتَ مَا فِى ٱلْأَرْضِ جَمِيعًۭا مَّآ أَلَّفْتَ بَيْنَ قُلُوبِهِمْ وَلَٰكِنَّ ٱللَّهَ أَلَّفَ بَيْنَهُمْ ۚ إِنَّهُۥ عَزِيزٌ حَكِيمٌۭ

(63) And brought together their hearts. If you had spent all that is in the earth, you could not have brought their hearts together; but Allāh brought them together. Indeed, He is Exalted in Might and Wise.