صحيح البخاري
Sahih Bukhari
كتاب كفارات الأيمان
The Book of The Expiation of Unfulfilled Oaths
باب عتق المدبر وأم الولد والمكاتب فى الكفارة، وعتق ولد الزنا:
(7) Chapter. What is said about the manumission of Mudabbar, and Umm Walad and a Mukatab for expiation; and the manumission of a bastard.