Yes. The Quran commands giving women their dowries as a gift (4:4). It belongs to the wife, and there is no fixed amount. It can be small or large by agreement, and the best is what is easy and sincere.
আর তোমরা স্ত্রীদেরকে তাদের মোহর দিয়ে দাও খুশীমনে। তারা যদি খুশী হয়ে তা থেকে অংশ ছেড়ে দেয়, তবে তা তোমরা স্বাচ্ছন্দ্যে ভোগ কর।
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is the mahr (dowry) required in marriage?
Yes. The Quran commands giving women their dowries as a gift (4:4). It belongs to the wife, and there is no fixed amount. It can be small or large by agreement, and the best is what is easy and sincere.