وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ سَأَلَ ابْنَ شِهَابٍ عَنْ رَجُلٍ، كَانَتْ تَحْتَهُ أَمَةٌ مَمْلُوكَةٌ فَاشْتَرَاهَا وَقَدْ كَانَ طَلَّقَهَا وَاحِدَةً فَقَالَ تَحِلُّ لَهُ بِمِلْكِ يَمِينِهِ مَا لَمْ يَبُتَّ طَلاَقَهَا فَإِنْ بَتَّ طَلاَقَهَا فَلاَ تَحِلُّ لَهُ بِمِلْكِ يَمِينِهِ حَتَّى تَنْكِحَ زَوْجًا غَيْرَهُ ‏.‏ قَالَ مَالِكٌ فِي الرَّجُلِ يَنْكِحُ الأَمَةَ فَتَلِدُ مِنْهُ ثُمَّ يَبْتَاعُهَا إِنَّهَا لاَ تَكُونُ أُمَّ وَلَدٍ لَهُ بِذَلِكَ الْوَلَدِ الَّذِي وَلَدَتْ مِنْهُ وَهِيَ لِغَيْرِهِ حَتَّى تَلِدَ مِنْهُ وَهِيَ فِي مِلْكِهِ بَعْدَ ابْتِيَاعِهِ إِيَّاهَا ‏.‏ قَالَ مَالِكٌ وَإِنِ اشْتَرَاهَا وَهِيَ حَامِلٌ مِنْهُ ثُمَّ وَضَعَتْ عِنْدَهُ كَانَتْ أُمَّ وَلَدِهِ بِذَلِكَ الْحَمْلِ فِيمَا نُرَى وَاللَّهُ أَعْلَمُ ‏.‏

Yahya related to me from Malik that he had asked Ibn Shihab abouta man who had a slave-girl as a wife, and then he bought her, anddivorced her once. He said, "She is halal for him by the possession ofthe right hand as long as he does not make his divorce irrevocable. Ifhe irrevocably divorces her, she is not halal for him by thepossession of the right hand until she has married another husband." Malik said that if a man rnarried a female slave and then shehad a child by him, and then he bought her, she was not an umm waladfor him because of the child born to him while she belonged toanother, until she had had a child by him while she was in hispossession after he had purchased her. Malik said, "If hebuys her and she is pregnant by him and she then gives birth while shebelongs to him, she is his umm walad by that pregnancy, according towhat we think, and Allah knows best." Translation Not Available

Book reference: Muwatta Imam Malik Book 28 Hadith 1126
Web reference: Muwatta Imam Malik Book 28 Hadith 32