[Machine] Ibn 'Abbas narrated that on the day of Khaybar, when the Messenger of Allah ﷺ conquered it, Muslim men had acquired women from the People of the Book who became their wives. So, when a man wanted to approach a woman from them, she would say, "I have a husband." The Messenger of Allah ﷺ was asked about this, and Allah ﷻ revealed this verse: {And [also prohibited to you are all] married women}, meaning the captives from the disbelievers. So, I mentioned this to Sa'id ibn Jubayr, and he said, "You spoke the truth."  

ابْنُ عَبَّاسٍ نَزَلَتْ يَوْمَ خَيْبَرَ لَمَّا فَتْحَ رَسُولُ اللهِ ﷺ أَصَابَ الْمُسْلِمُونَ مِنْ نِسَاءِ أَهْلِ الْكِتَابِ لَهُنَّ أَزْوَاجٌ فَكَانَ الرَّجُلُ إِذَا أَرَادَ أَنْ يَأْتِيَ امْرَأَةً مِنْهُنَّ قَالَتْ إِنَّ لِي زَوْجًا فَسُئِلَ رَسُولُ اللهِ ﷺ عَنْ ذَلِكَ فَأَنْزَلَ اللهُ ﷻ هَذِهِ الْآيَةَ {وَالْمُحْصَنَاتُ مِنَ النِّسَاءِ} الْآيَةَ يَعْنِي السَّبِيَّةَ مِنَ الْمُشْرِكِينَ تُصَابُ لَا بَأْسَ بِذَلِكَ فَذَكَرْتُ ذَلِكَ لِسَعِيدِ بْنِ جُبَيْرٍ فَقَالَ صَدَقَ