Hadith.5029 - Al-Hasan ibn Mahbub narrated from Ali ibn Ri'ab, who reported from Abu Abdullah (as) regarding a slave who marries a free woman and is later emancipated but then commits an immoral act.
Imam (as) said
"There is no stoning (rajm) upon him until he engages in intercourse with the free woman after his emancipation."
I asked: "Does the free woman have the option (to leave him) when he is freed?"
Imam (as) replied: "No, for she accepted him while he was a slave, and he remains upon his original marriage."