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وَآتُوا النِّسَاءَ صَدُقَاتِهِنَّ نِحْلَةً ۚ فَإِنْ طِبْنَ لَكُمْ عَنْ شَيْءٍ مِنْهُ نَفْسًا فَكُلُوهُ هَنِيئًا مَرِيئًا
And give the women (on marriage) their dower as a free gift; but if they, of their own good pleasure, remit any part of it to you, Take it and enjoy it with right good cheer.
Surah An-Nisa Ayat 4