Al-Ahzab - 33:52

لَا يَحِلُّ لَكَ النِّسَاء مِن بَعْدُ وَلَا أَن تَبَدَّلَ بِهِنَّ مِنْ أَزْوَاجٍ وَلَوْ أَعْجَبَكَ حُسْنُهُنَّ إِلَّا مَا مَلَكَتْ يَمِينُكَ وَكَانَ اللَّهُ عَلَى كُلِّ شَيْءٍ رَّقِيبًا
[33:52]
It is not allowed to you to take women afterwards, nor that you should change them for other wives, though their beauty be pleasing to you, except what your right hand possesses and Allah is Watchful over all things.
It is not lawful for thee (to marry more) women after this, nor to change them for (other) wives, even though their beauty attract thee, except any thy right hand should possess (as handmaidens): and Allah doth watch over all things.
It is not allowed thee to take (other) women henceforth, nor that thou shouldst change them for other wives even though their beauty pleased thee, save those whom thy right hand possesseth. And Allah is ever Watcher over all things.