Laa yahillu lakan nisaaa'u mim ba'du wa laaa an tabaddala bihinna min azwaajinw wa law ajabaka husnuhunna illaa maa malakat yameenukk; wa kaanal laahu 'alaa kulli shai'ir Raqeeba
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.