Al-Mumtahanah · 60:11

11. If it happens that some of your women leave you for the disbelievers as renegades and you demand your dowry from the disbelievers but they do not give it to you, and thereafter you acquire booty from the disbelievers, then give those husbands whose wives left as renegades the equivalent of the dowry they paid. Be mindful of Allah, in Whom you have faith, by fulfilling His instructions and avoiding His prohibitions.