What advice should be given to a wife who suffers from her mother-in-law's continuous ill-treatment, especially since she does not care for her sick husband nor helps him?

One must be careful not to fall into sin against the wife's mother, such as insulting her or backbiting about her. It is advisable to be patient with her harm in honor of the husband, to forgive her, to avoid what provokes her, and to make abundant supplications for her guidance. She can also be advised through the husband or someone else. If patience wears thin, one can request a separate residence, while considering the husband's circumstances.