One-fifth of Booty to the Cause of Allah (Khumus)
57/20. Chapter:
The food gained as war booty in the battlefield
Sahih Bukhari
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ كُنَّا نُصِيبُ فِي مَغَازِينَا الْعَسَلَ وَالْعِنَبَ فَنَأْكُلُهُ وَلاَ نَرْفَعُهُ.
Narrated Ibn `Umar: In our holy battles, we used to get honey and grapes, as war booty which we would eat and would not store.
Reference : Sahih al-Bukhari 3154In-book reference : Book 57, Hadith 62USC-MSA web (English) reference : Vol. 4, Book 53, Hadith 382