Divorce is twice; then either to retain in all fairness, or to release nicely. It is not lawful for you to take back anything from what you have given them, unless both apprehend that they would not be able to maintain the limits set by Allah. Now, if you apprehend that they would not maintain the limits set by Allah, then, there is no sin on them in what she gives up to secure her release. These are the limits set by Allah. Therefore, do not exceed them. Whosoever exceeds the limits set by Allah, then, those are the transgressors.