Narrated Abdullah ibn Umar:

The Messenger of Allah ﷺ went out on the day of Badr along with three hundred and fifteen (men). The Messenger of Allah ﷺ said: O Allah, they are on foot, provide mount for them; O Allah , they are naked, clothe them; O Allah, they are hungry, provide food for them. Allah then bestowed victory on them. They returned when they were clothed. There was no man of them but he returned with one or two camels; they were clothed and ate to their fill.

حَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، حَدَّثَنَا حُيَىٌّ، عَنْ أَبِي عَبْدِ الرَّحْمَنِ الْحُبُلِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، أَنَّ رَسُولَ اللَّهِ ﷺ خَرَجَ يَوْمَ بَدْرٍ فِي ثَلاَثِمِائَةٍ وَخَمْسَةَ عَشَرَ فَقَالَ رَسُولُ اللَّهِ ﷺ
" اللَّهُمَّ إِنَّهُمْ حُفَاةٌ فَاحْمِلْهُمُ اللَّهُمَّ إِنَّهُمْ عُرَاةٌ فَاكْسُهُمُ اللَّهُمَّ إِنَّهُمْ جِيَاعٌ فَأَشْبِعْهُمْ " . فَفَتَحَ اللَّهُ لَهُ يَوْمَ بَدْرٍ فَانْقَلَبُوا حِينَ انْقَلَبُوا وَمَا مِنْهُمْ رَجُلٌ إِلاَّ وَقَدْ رَجَعَ بِجَمَلٍ أَوْ جَمَلَيْنِ وَاكْتَسَوْا وَشَبِعُوا .