صحيح البخاري
Sahih Bukhari
كتاب الهبة
The Book of Gifts and The Superiority of Giving Gifts and The Exhortation for Giving Gifts
باب فضل المنيحة:
Chapter. The superiority of the Maniha, i.e., a milch she-camel or a sheep lent to somebody to use its milk and return it to its owner afterwards.