الفتح — Al-Fath Ayat 22
وَلَوْ قَاتَلَكُمُ الَّذِيْنَ كَفَرُوْا لَوَلَّوُا الْاَدْبَارَ ثُمَّ لَا يَجِدُوْنَ وَلِيًّا وَّلَا نَصِيْرًا
Wa lau qātalakumul-lażīna kafarū lawallawul-adbāra ṡumma lā yajidūna waliyyaw wa lā naṣīrā(n).
"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."