মোহর দিয়ে দাও খুশীমনে।

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