It was narrated that Salamah bin Al-Muhabbaq said:

"The Prophet ﷺ passed judgment concerning a man who had intercourse with his wife's slave woman: 'If he forced her, then she is free, and he has to give her mistress a similar slave as a replacement; if she obeyed him in that, then she belongs to him, and he has to give her mistress a similar slave as a replacement.'"

أَخْبَرَنَا مُحَمَّدُ بْنُ رَافِعٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّزَّاقِ، قَالَ حَدَّثَنَا مَعْمَرٌ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ قَبِيصَةَ بْنِ حُرَيْثٍ، عَنْ سَلَمَةَ بْنِ الْمُحَبَّقِ، قَالَ قَضَى النَّبِيُّ ﷺ فِي رَجُلٍ وَطِئَ جَارِيَةَ امْرَأَتِهِ " إِنْ كَانَ اسْتَكْرَهَهَا فَهِيَ حُرَّةٌ وَعَلَيْهِ لِسَيِّدَتِهَا مِثْلُهَا وَإِنْ كَانَتْ طَاوَعَتْهُ فَهِيَ لَهُ وَعَلَيْهِ لِسَيِّدَتِهَا مِثْلُهَا " .