Such a (revocable) divorce may be (pronounced) twice, then, (after the second pronouncement) there should be either retaining (the wife) with honour and fairness or letting (her) leave with goodness. And it is not lawful for you to take (back) anything of what you have given them (your wives); however, if both (the husband and the wife) fear that they cannot abide by the injunctions of Allâh, and if you (- the Muslim community, also) fear that they cannot observe the limits (prescribed) by Allâh then there is no blame on either of them in what she gives up to redeem herself (as Khula`). These are the injunctions of Allâh, therefore, do not violate them; and whoso violates the injunctions of Allâh, it is they who are really the wrongdoers. - Quran 2:229