Al-Mumtahanah 60:11

وَإِن فَاتَكُمۡ شَيۡءٞ مِّنۡ أَزۡوَٰجِكُمۡ إِلَى ٱلۡكُفَّارِ فَعَاقَبۡتُمۡ فَـَٔاتُواْ ٱلَّذِينَ ذَهَبَتۡ أَزۡوَٰجُهُم مِّثۡلَ مَآ أَنفَقُواْۚ وَٱتَّقُواْ ٱللَّهَ ٱلَّذِيٓ أَنتُم بِهِۦ مُؤۡمِنُونَ 11

And if you have lost any of your wives to the disbelievers and you subsequently obtain [something], then give those whose wives have gone the equivalent of what they had spent. And fear Allah, in whom you are believers