Sahih Muslim Book 43, Hadith Number 7181.

Chapter : Compel not your slave-girls to prostitution.

Jabir reported that ‘Abdullah b. Ubayy b. Salul had two slave-girls; one was called Musaika and the other one was called Umaima and he compelled them to prostitution (for which ‘Abdullah b. Ubayy b. Salul compelled them). They made a complaint about this to Allah’s Messenger (may peace be upon him) and it was upon this that this verse was revealed: “And compel not your slave-girls to prostitute” up to the words: “Allah is Forgiving, Merciful.”