Divorce may be (pronounced) twice, then keep (them) in good fellowship or let (them) go with kindness; and it is not lawful for you to take any part of what you have given them, unless both fear that they cannot keep within the limits of Allah; then if you fear that they cannot keep within the limits of Allah, there is no blame on them for what she gives up to become free thereby. These are the limits of Allah, so do not exceed them and whoever exceeds the limits of Allah these it is that are the unjust.

So if he divorces her she shall not be lawful to him afterwards until she marries another husband; then if he divorces her there is no blame on them both if they return to each other (by marriage), if they think that they can keep within the limits of Allah, and these are the limits of Allah which He makes clear for a people who know.