Surah Al-Fath, Verse 22

وَلَوۡ قَٰتَلَكُمُ ٱلَّذِينَ كَفَرُواْ لَوَلَّوُاْ ٱلۡأَدۡبَٰرَ ثُمَّ لَا يَجِدُونَ وَلِيّٗا وَلَا نَصِيرٗا٢٢

walaw qātalakumu alladhīna kafarū lawallawū l-adbāra thumma lā yajidūna waliyyan walā naṣīran

And if those [Makkans] who disbelieve had fought you, they would have turned their backs [in flight]. Then they would not find a protector or a helper.