What is the religious ruling regarding the case of the questioner who describes her mother-in-law as loving money and gold excessively, not giving charity, taking money from her son to spend on luxuries, favoring her daughters, not praying, and practicing sorcery on her son and husband? And how should the questioner deal with this mother-in-law given her hatred for her, and is the mother-in-law entitled to take money from her son?

You have no concern with what your husband gives to his mother, as long as he gives you your rights and does not fall short in what is due to you in terms of maintenance. His giving money to his mother is an act of piety, so do not prevent him from honoring his mother. As for what you mentioned about amulets and magical acts performed by your husband's mother, this is a dangerous and reprehensible matter that must be changed. You should inform your husband about it so that he can deal with the issue himself. You and your husband should be diligent in fortifying yourselves by maintaining regular remembrances (dhikr), reciting the Quran, especially Surah (definition) Al-Baqarah, and the two surahs of seeking refuge (Al-Mu'awwidhatayn). This woman should be advised with wisdom and informed about the seriousness of her involvement in magic, and that it is one of the gravest destructive sins.