Surah Al-Imran, ayah 122

إِذۡ هَمَّت طَّآئِفَتَانِ مِنكُمۡ أَن تَفۡشَلَا وَٱللَّهُ وَلِيُّهُمَاۗ وَعَلَى ٱللَّهِ فَلۡيَتَوَكَّلِ ٱلۡمُؤۡمِنُونَ ١٢٢

Idh hammat tā'ifatāni minkum an tafshalā wallāhu waliyyuhumā wa'alallāhi falyatawakkalil-mu'minūn

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