Musannaf Ibn Abi Shaybah

Hazrat Musa bin Abi Aisha (may Allah be pleased with her, may Allah have mercy on her) says that I asked Hazrat Murrah bin Shurahbil Al-Hamdani and Hazrat Saeed bin Jubair (may Allah have mercy on him) about a Magian slave girl: when a man keeps her, can he have intercourse with her? Hazrat Murrah said: He should not have intercourse with her until she accepts Islam. And Hazrat Saeed bin Jubair (may Allah have mercy on him) said: If he returns to her again, then this is a bad thing for him.