with slaves is legal (alternate interpretation)

إِلَّا عَلَىٰٓ أَزْوَٰجِهِمْ أَوْ مَا مَلَكَتْ أَيْمَـٰنُهُمْ فَإِنَّهُمْ غَيْرُ مَلُومِينَ

except with their spouses or their slaves––with these they are not to blame,

يَـٰٓأَيُّهَا ٱلنَّبِىُّ إِنَّآ أَحْلَلْنَا لَكَ أَزْوَٰجَكَ ٱلَّـٰتِىٓ ءَاتَيْتَ أُجُورَهُنَّ وَمَا مَلَكَتْ يَمِينُكَ مِمَّآ أَفَآءَ ٱللَّهُ عَلَيْكَ وَبَنَاتِ عَمِّكَ وَبَنَاتِ عَمَّـٰتِكَ وَبَنَاتِ خَالِكَ وَبَنَاتِ خَـٰلَـٰتِكَ ٱلَّـٰتِى هَاجَرْنَ مَعَكَ وَٱمْرَأَةً مُّؤْمِنَةً إِن وَهَبَتْ نَفْسَهَا لِلنَّبِىِّ إِنْ أَرَادَ ٱلنَّبِىُّ أَن يَسْتَنكِحَهَا خَالِصَةً لَّكَ مِن دُونِ ٱلْمُؤْمِنِينَ ۗ قَدْ عَلِمْنَا مَا فَرَضْنَا عَلَيْهِمْ فِىٓ أَزْوَٰجِهِمْ وَمَا مَلَكَتْ أَيْمَـٰنُهُمْ لِكَيْلَا يَكُونَ عَلَيْكَ حَرَجٌ ۗ وَكَانَ ٱللَّهُ غَفُورًا رَّحِيمًا

Prophet, We have made lawful for you the wives whose bride gift you have paid, and any slaves God has assigned to you through war, and the daughters of your uncles and aunts on your father’s and mother’s sides, who migrated with you. Also any believing woman who has offered herself to the Prophet and whom the Prophet wishes to wed- this is only for you [Prophet] and not the rest of the believers: We know exactly what We have made obligatory for them concerning their wives and slave-girls- so you should not be blamed: God is most forgiving, most merciful.

لَّا يَحِلُّ لَكَ ٱلنِّسَآءُ مِنۢ بَعْدُ وَلَآ أَن تَبَدَّلَ بِهِنَّ مِنْ أَزْوَٰجٍ وَلَوْ أَعْجَبَكَ حُسْنُهُنَّ إِلَّا مَا مَلَكَتْ يَمِينُكَ ۗ وَكَانَ ٱللَّهُ عَلَىٰ كُلِّ شَىْءٍ رَّقِيبًا

You [Prophet] are not permitted to take any further wives, nor to exchange the wives you have for others, even if these attract you with their beauty. But this does not apply to your slave-girls: God is watchful over all.

إِلَّا عَلَىٰٓ أَزْوَٰجِهِمْ أَوْ مَا مَلَكَتْ أَيْمَـٰنُهُمْ فَإِنَّهُمْ غَيْرُ مَلُومِينَ

from all but their spouses or their slave-girls––there is no blame attached to [relations with] these,