Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:15205Abū al-Ḥasan al-Raffāʾ > ʿUthmān b. Muḥammad b. Bishr > Ismāʿīl al-Qāḍī > Ibn Abū Ūways > Ibn Abū al-Zinād from his father

[Machine] Regarding the jurists of the people of Madinah, in the case of a person who married a slave woman and then she became free suddenly, and her master then unlawfully married her after that, it is not permissible for him to have a secret relationship with her as her master, and it is not permissible for him to have ownership over her through his right hand until she marries someone else.  

البيهقي:١٥٢٠٥أَخْبَرَنَا أَبُو الْحَسَنِ الرَّفَّاءُ أَخْبَرَنِي عُثْمَانُ بْنُ مُحَمَّدِ بْنِ بِشْرٍ نا إِسْمَاعِيلُ الْقَاضِي نا ابْنُ أَبِي أُوَيْسٍ نا ابْنُ أَبِي الزِّنَادِ عَنْ أَبِيهِ

عَنِ الْفُقَهَاءِ مِنْ أَهْلِ الْمَدِينَةِ فِي مَنْ تَزَوَّجَ أَمَةً ثُمَّ بَانَتْ مِنْهُ بِالْبَتَّةِ ثُمَّ اسْتَسَرَّهَا سَيِّدُهَا ثُمَّ ابْتَاعَهَا زَوْجُهَا بَعْدَ ذَلِكَ فَلَا تَحِلُّ لَهُ بِاسْتِسْرَارِ سَيِّدِهَا إِيَّاهَا وَلَا تَحِلُّ لَهُ بِمِلْكِ يَمِينِهِ حَتَّى تَنْكِحَ زَوْجًا غَيْرَهُ