At-Talaq · 65:1

1. O Prophet! If you or any of the men from your nation intend to divorce your wives, then he should issue a divorce to her considering her waiting period. That is that the divorce should be issued in a period of purity between two separate menses, in which he has not had sexual relations with her. Also, keep track of the waiting period, so that you are able to take your wives back within it if you intend to do so. And be mindful of Allah by fulfilling His commands and refraining from the things He has not allowed; do not force your divorced wives out of the homes they live in, until their waiting periods finish, except if they commit an obvious shameful act i.e. adultery. Those are the limits of Allah He has set for His servants; whoever trespasses the limits of Allah has indeed, oppressed himself by placing himself in a situation of doom, because of disobeying his Lord. O divorcée! You do not know, perhaps Allah may create a longing in the heart of the spouse, and he may take his wife back.