Sura al-Anfāl 8:16

وَمَن يُوَلِّهِمْ يَوْمَئِذٍ دُبُرَهُۥٓ إِلَّا مُتَحَرِّفًا لِّقِتَالٍ أَوْ مُتَحَيِّزًا إِلَىٰ فِئَةٍ فَقَدْ بَآءَ بِغَضَبٍ مِّنَ ٱللَّـهِ وَمَأْوَىٰهُ جَهَنَّمُ وَبِئْسَ ٱلْمَصِيرُ

wa-man yuwallihim yawmaʾidhin duburahu illā mutaḥarrifan lliqitālin aw mutaḥayyizan ilā fiʾatin fa-qad bāʾa bighaḍabin mina allāhi wa-maʾwāhu jahannamu wa-biʾsa l-maṣīru

If any do turn his back to them on such a day - unless it be in a stratagem of war, or to retreat to a troop (of his own)- he draws on himself the wrath of Allah, and his abode is Hell,- an evil refuge (indeed)!