“the letters k, f, r” (are on his forehead). (Using translation from Abū Dāʾūd 4317)   

عَنْ شُعْبَةَ  

[Machine] He used to say about a man who divorces a slave woman three times and then buys her back, that she is not lawful for him until she marries another husband. I heard Malik saying that this is the opinion of more than one companion of the Prophet ﷺ.  

أَنَّهُ كَانَ يَقُولُ فِي الرَّجُلِ يُطَلِّقُ الْأَمَةَ ثَلَاثًا ثُمَّ يَشْتَرِيهَا أَنَّهَا لَا تَحِلُّ لَهُ حَتَّى تَنْكِحَ زَوْجًا غَيْرَهُ قَالَ وَسَمِعْتُ مَالِكًا يَقُولُ قَالَ ذَلِكَ غَيْرُ وَاحِدٍ مِنْ أَصْحَابِ النَّبِيِّ ﷺ  

[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.  

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  

[Machine] "He cannot marry her again, except through the door that was forbidden for him, in the case of a man who married a slave woman, then divorced her twice, then bought her back. And he said, if she is under the authority of another man, he should divorce her twice, then her master marries her. He said, her husband's master cannot make her permissible for her husband, unless he becomes her husband."  

لَا تَحِلُّ لَهُ إِلَّا مِنَ الْبَابِ الَّذِي حُرِّمَتْ عَلَيْهِ فِي رَجُلٍ تَزَوَّجَ مَمْلُوكَةً فَطَلَّقَهَا تَطْلِيقَتَيْنِ ثُمَّ اشْتَرَاهَا وَقَالَ إِذَا كَانَ تَحْتَ الرَّجُلِ مَمْلُوكَةٌ فَطَلَّقَهَا تَطْلِيقَتَيْنِ ثُمَّ وَقَعَ عَلَيْهَا سَيِّدُهَا فَقَالَ لَا يُحِلُّهَا السَّيِّدُ لِزَوْجِهَا إِلَّا أَنْ يَكُونَ زَوْجًا