Is it permissible to visit one's mother without the husband's knowledge if the husband forbids it due to his disputes with the wife's sisters, knowing that the mother lives with the sisters and the husband is not religiously observant?

The fundamental principle is that a woman should not leave her husband's house except with his permission; otherwise, she is considered disobedient (nashiz), and her right to financial support (nafaqa) is forfeited, and she incurs sin. However, cases of necessity are an exception to this. Scholars have differed regarding a wife leaving to visit her parents. The Hanafis and Malikis held that it is permissible for her to leave even without his permission, especially if the father is ill, and she may visit her parents every Friday and her maharim (unmarriageable kin) once a year. The Shafi'is and Hanbalis, however, maintained that the husband has the right to prevent her unless he gives permission, but he should not prevent her from speaking to them or them visiting her, unless he fears harm. The preponderant view is that it is not permissible for the husband to prevent his wife from visiting her parents unless he fears harm from them, such as them corrupting her faith or inciting her to disobey him. If the husband's disagreement is with the wife's sisters, this does not justify preventing the wife from seeing her mother. In this case, the mother is permitted to visit her daughter. If the husband insists on preventing her without a valid reason, the wife may leave to visit her mother without his permission.