Al-Baqarah 2:229 الطلاق مرتان فامساك بمعروف او تسريح باحسان ولا يحل لكم ان تاخذوا مما اتيتموهن شييا الا ان يخافا الا يقيما حدود الله فان خفتم الا يقيما حدود الله فلا جناح عليهما فيما افتدت به تلك حدود الله فلا تعتدوها ومن يتعد حدود الله فاولايك هم الظالمون ٢٢٩

Divorce can happen twice, and [each time] wives either be kept on in an acceptable manner or released in a good way. It is not lawful for you to take back anything that you have given [your wives], except where both fear that they cannot maintain [the marriage] within the bounds set by God: if you [arbiters] suspect that the couple may not be able to do this, then there will be no blame on either of them if the woman opts to give something for her release. These are the bounds set by God: do not overstep them. It is those who overstep God’s bounds who are doing wrong.