Jihad (Kitab Al-Jihad)
Dawud :: Book 14 : Hadith 2692
Narrated Abdullah ibn Umar:
Nafi' said that a slave of Ibn Umar ran away to the enemy, and then the Muslims overpowered them. The Apostle of Allah (peace_be_upon_him) returned him to Ibn Umar and that was not distributed (as a part of booty).