Surah Al-Anfal 8:63

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

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.

Translation: Saheeh International

Tafsir

and reconciled brought together their hearts after old feuds had divided them. Had you expended all that is in the earth you could not have reconciled their hearts but God reconciled their hearts through His power. Truly He is Mighty His way prevailing Wise nothing being beyond the scope of His wisdom.

Excerpt from Tafsir al-Jalalayn, commentary on 8:63, via Quran.com. The reader has the full commentary and 9 more tafsirs.