Surah Al-Baqarah, verse 237

وَإِن طَلَّقْتُمُوهُنَّ مِن قَبْلِ أَن تَمَسُّوهُنَّ وَقَدْ فَرَضْتُمْ لَهُنَّ فَرِيضَةً فَنِصْفُ مَا فَرَضْتُمْ إِلَّآ أَن يَعْفُونَ أَوْ يَعْفُوَا۟ ٱلَّذِى بِيَدِهِۦ عُقْدَةُ ٱلنِّكَاحِ ۚ وَأَن تَعْفُوٓا۟ أَقْرَبُ لِلتَّقْوَىٰ ۚ وَلَا تَنسَوُا۟ ٱلْفَضْلَ بَيْنَكُمْ ۚ إِنَّ ٱللَّهَ بِمَا تَعْمَلُونَ بَصِيرٌ ﴿٢٣٧﴾

2:237 If you divorce them before you have consummated the marriage, but you have already fixed their dowry, then pay half the amount agreed upon, unless the wife graciously waives it or the husband graciously pays it in full, but graciousness is closer to piety. Do not forget to be graceful to one another, for Allah is All-Seeing of what you do