Not lawful to you, [O Muḥammad], are [any additional] women after [this], nor [is it] for you to exchange them for [other] wives, even if their beauty were to please you, except what your right hand possesses. And ever is Allāh, over all things, an Observer.1
O Messenger! It is not permissible for you to marry women other than your wives who are already in your protection, neither is it permissible for you to divorce them, or divorce any one of them so that you may marry another woman, even if her beauty appeals to you. However, it is permissible for you to take captive women into your possession. And Allah is a guardian over everything. This ruling proves the virtue of the mothers of the believers, because the Prophet peace be upon him was prohibited from divorcing them and marrying others whilst he was married to them.