Musnad Abu Ya'la al-Mawsili 109:305

Narrated to us Muhammad ibn Numayr, narrated to us Ibn Abi Ubaydah, from his father, from al-A’mash, from Abu Sufyan, from Jabir, who said: There was a slave girl belonging to Abdullah ibn Ubayy who was called Musaykah. He forced her [into prostitution], so she came to the Prophet, may Allah bless him and grant him peace, and complained about that to him. Then Allah revealed: "And do not force your slave girls to prostitution, if they desire chastity, to seek the temporary gains of worldly life." (An-Nur: 33)