Surah An-Nisa Verse 20 - English Translation by Muhammad Mahmoud Ghali
Surah An-Nisaوَإِنۡ أَرَدتُّمُ ٱسۡتِبۡدَالَ زَوۡجٖ مَّكَانَ زَوۡجٖ وَءَاتَيۡتُمۡ إِحۡدَىٰهُنَّ قِنطَارٗا فَلَا تَأۡخُذُواْ مِنۡهُ شَيۡـًٔاۚ أَتَأۡخُذُونَهُۥ بُهۡتَٰنٗا وَإِثۡمٗا مُّبِينٗا
And in case you are willing to exchange a spouse in place of (another) spouse, and you have brought one of them a hundredweight, (Literally: a Kantar) then do not take anything of it. Will you take it by way of all-malicious (calumny) and evident vice