2:231
And when you divorce the women and they reach their (waiting) term, then retain them in a fair manner or release them in a fair manner. And (do) not retain them (to) hurt so that you transgress. And whoever does that, then indeed, he wronged himself. And (do) not take (the) Verses (of) Allah (in) jest, and remember (the) Favors (of) Allah upon you and what (is) revealed to you of the Book and [the] wisdom; He instructs you with it. And fear Allah and know that Allah (is) of every thing All-Knower.