يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِذَا لَقِيتُمُ ٱلَّذِينَ كَفَرُواْ زَحۡفٗا فَلَا تُوَلُّوهُمُ ٱلۡأَدۡبَارَ ١٥
O you who have believed, when you meet those who disbelieve advancing [in battle], do not turn to them your backs [in flight].
Translation: Saheeh International (English)
Each word's meaning and sound
O you who believe in Allah and who follow His Messenger, if you meet the idolaters approaching them in battle, then do not turn your backs to them and run away; but be patient when facing them, and firm when you meet, because Allah is with you with His help and support.
Al-Mukhtasar in interpreting the Noble Quran