Sahih Bukhari, Hadith: Q2217, (100) Chapter. The purchase of a slave from the enemy at war and giving him (to somebody) as a gift and manumitting him.

صحيح البخاري

Sahih Bukhari

كتاب البيوع

The Book of Sales (Bargains)

باب شراء المملوك من الحربي وهبته وعتقه:

(100) Chapter. The purchase of a slave from the enemy at war and giving him (to somebody) as a gift and manumitting him.