All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
No doubt the parents, especially the mother, have a great status, and one should endeavor to gain her satisfaction as much as possible. Therefore, it is good to strive to persuade her that you marry a pious and religious woman, and also to convince her not to take a dowry from the woman, because this is contrary to the teachings of Islam. Please refer to Fatwa 85873.
If your mother is convinced, then to Allaah belongs all praise; otherwise, there is nothing wrong with you marrying someone you like, even if your mother does not agree. Obedience to parents is not obligatory in all cases; the scholars have named some conditions in order to avoid the foolishness and desires that sometimes occur with parents, and to avoid the hardship that they may cause to their children without Islamic consideration. Please refer to Fataawa 131695 and 84942.
We advise you to be wise and discuss the matter with your mother in a gentle and soft manner. You should seek the Help of Allaah in trying to convince her, and you may seek the help of some righteous and reasonable people who could influence and convince her and to whom she might listen.
May Allaah facilitate your matter and enable you to do all that is good.
Allaah Knows best.