Hazrat Ja'far bin Burqan narrates that I asked Hazrat Zuhri about a man who had a slave woman in his marriage and then he bought her. He replied that buying her will terminate the marriage. Hazrat Ja'far says that I asked Maymun bin Mihran about this, and he said that she is permissible for him through both doors: through the door of marriage and through the door of ownership.