Surah Ali'Imran, Verse 122

إِذۡ هَمَّت طَّآئِفَتَانِ مِنكُمۡ أَن تَفۡشَلَا وَٱللَّهُ وَلِيُّهُمَاۗ وَعَلَى ٱللَّهِ فَلۡيَتَوَكَّلِ ٱلۡمُؤۡمِنُونَ١٢٢

idh hammat ṭāifatāni minkum an tafshalā wal-lahu waliyyuhumā waʿalā l-lahi falyatawakkali l-mu'minūna

When two parties among you were about to lose courage, but Allāh was their ally; and upon Allāh the believers should rely.