وَإِنْ أَرَدتُّمُ اسْتِبْدَالَ زَوْجٍ مَّكَانَ زَوْجٍ وَآتَيْتُمْ إِحْدَاهُنَّ قِنطَارًا فَلاَ تَأْخُذُواْ مِنْهُ شَيْئًا أَتَأْخُذُونَهُ بُهْتَاناً وَإِثْماً مُّبِيناً
﴿٢٠﴾
سورة النساء
(4/20) And if you wish to replace a wife by another and you have given one of them a heap of gold (as Mahr) then do not take from it anything; would you take it (what you promised) by slandering and manifest sin?
Surah An-Nisa