"Ibn 'Abbas was asked about a slave who divorces his wife twice, then (they are freed). Can he marry her? He said: 'Yes.' It was said to him: 'On what basis?' He said: 'The Messenger of Allah ﷺ passed such a judgement .' " (D a' if)  

عَنْ عَبْدٍ طَلَّقَ امْرَأَتَهُ تَطْلِيقَتَيْنِ ثُمَّ أُعْتِقَا أَيَتَزَوَّجُهَا قَالَ نَعَمْ فَقِيلَ لَهُ عَمَّنْ قَالَ قَضَى بِذَلِكَ رَسُولُ اللَّهِ ﷺ قَالَ عَبْدُ الرَّزَّاقِ قَالَ عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ لَقَدْ تَحَمَّلَ أَبُو الْحَسَنِ هَذَا صَخْرَةً عَظِيمَةً عَلَى عُنُقِهِ