And if you wish to have (one) wife in place of another and you have given one of them a heap of gold, then take not from it anything; would you take it by slandering (her) and (doing her) manifest wrong?

And if anything (out of the dowries) of your wives has passed away from you to the unbelievers, then your turn comes, give to those whose wives have gone away the like of what they have spent, and be careful of (your duty to) Allah in Whom you believe.