Fighting for the Cause of Allah (Jihaad)
56/187. Chapter:
If Al-Mushrikun take the property of a Muslim as war booty
Sahih Bukhari
حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما أَنَّهُ كَانَ عَلَى فَرَسٍ يَوْمَ لَقِيَ الْمُسْلِمُونَ، وَأَمِيرُ الْمُسْلِمِينَ يَوْمَئِذٍ خَالِدُ بْنُ الْوَلِيدِ، بَعَثَهُ أَبُو بَكْرٍ، فَأَخَذَهُ الْعَدُوُّ، فَلَمَّا هُزِمَ الْعَدُوُّ رَدَّ خَالِدٌ فَرَسَهُ.
Narrated Ibn `Umar: That he was riding a horse on the day, the Muslims fought (against the Byzantines), and the commander of the Muslim army was Khalid bin Al-Walid who had been appointed by Abu Bakr. The enemy took the horse away, and when the enemy was defeated, Khalid returned the horse to him.
Reference : Sahih al-Bukhari 3069In-book reference : Book 56, Hadith 274USC-MSA web (English) reference : Vol. 4, Book 52, Hadith 303