[4:34] Men are the maintainers of women because Allah has made some of them to excel others and because they spend out of their property; the good women are therefore obedient, guarding the unseen as Allah has guarded; and (as to) those on whose part you fear desertion, admonish them, and leave them alone in their sleeping places and beat them; then if they obey you, do not seek a way against them; surely Allah is High, Great.
"These are the names of Muhammad's male slaves: Yakan Abu Sharh, Aflah, 'Ubayd, Dhakwan, Tahman, Mirwan, Hunayn, Sanad, Fadala Yamamin, Anjasha al-Hadi, Mad'am, Karkara, Abu Rafi', Thawban, Ab Kabsha, Salih, Rabah, Yara Nubyan, Fadila, Waqid, Mabur, Abu Waqid, Kasam, Abu 'Ayb, Abu Muwayhiba, Zayd Ibn Haritha, and also a black slave called Mahran, who was re-named (by Muhammad) Safina (`ship')."
Muhammad's Maid Slaves "are Salma Um Rafi', Maymuna daughter of Abu Asib, Maymuna daughter of Sa'd, Khadra, Radwa, Razina, Um Damira, Rayhana, Mary the Coptic, in addition to two other maid-slaves, one of them given to him as a present by his cousin, Zaynab, and the other one captured in a war."
Zad al-Ma'ad, pp. 114-116