Is it permissible to leave the sick grandmother with the maid and go to her husband for a week, or to send her to her children in Pakistan, knowing that they will not care for her as she does, and that she mistreats the husband despite his sponsorship of her?

If a woman transfers to the authority of her husband, then obedience to him takes precedence over obedience to her parents. We advise you to combine the interest of staying with your husband and caring for your grandmother, and to try to convince your husband to agree to her staying with him in the house and to be patient with whatever may come from her. However, if combining these is not possible, then the husband takes precedence, especially if there is an alternative for caring for your grandmother. Regarding the dispute, try to explain the truth to your maternal aunt's daughter-in-law, and advise your grandmother kindly.