Does a daughter's hatred for her mother, who constantly curses her and her sisters and treats her daughters poorly, constitute a sin that severs her relationship with her Lord and prevents the acceptance of her prayers and supplications, especially given that the mother reciprocates the same hatred?

Hating one's mother in one's heart is not punishable as long as it does not lead to disrespect or disobedience. This feeling must be dispelled by showing her affection and gently advising her to stop showing favoritism and uttering evil prayers. A mother's knowledge of her daughter's hatred is evidence of showing that hatred, which is forbidden disobedience. God's pleasure is only attained through filial piety and kindness to one's parents. Their ill-treatment should not be met in kind. She must be patient and pray for her mother and for herself to have a righteous husband.