The Book of Commentary (Kitab Al-Tafsir)
Muslim :: Book 43 : Hadith 7181
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."