Narrated Abdullah ibn Mas'ud:

The Prophet ﷺ said: Our Lord Most High is pleased with a man who fights in the path of Allah, the Exalted; then his companions fled away (i.e. retreated). But he knew that it was a sin (to flee away from the battlefield), so he returned, and his blood was shed. Thereupon Allah, the Exalted, says to His angels: Look at My servant; he returned seeking what I have for him (i.e. the reward), and fearing (the punishment) I have, until his blood was shed.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، أَخْبَرَنَا عَطَاءُ بْنُ السَّائِبِ، عَنْ مُرَّةَ الْهَمْدَانِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ : " عَجِبَ رَبُّنَا مِنْ رَجُلٍ غَزَا فِي سَبِيلِ اللَّهِ فَانْهَزَمَ " . يَعْنِي أَصْحَابَهُ : " فَعَلِمَ مَا عَلَيْهِ فَرَجَعَ حَتَّى أُهْرِيقَ دَمُهُ، فَيَقُولُ اللَّهُ تَعَالَى لِمَلاَئِكَتِهِ : انْظُرُوا إِلَى عَبْدِي رَجَعَ رَغْبَةً فِيمَا عِنْدِي وَشَفَقَةً مِمَّا عِنْدِي حَتَّى أُهَرِيقَ دَمُهُ " .