What is the ruling on a mother who falsely accuses her son and invokes curses upon him, disinherits him, and demands that he relinquish his legitimate right to his father's house?

Filial piety towards one's mother is among the most obligatory duties and greatest acts of devotion, while disobeying her is one of the gravest sins. A mother's injustice towards her child does not permit severing ties with her; rather, one must accompany her with kindness, even if she commands idolatry. A mother who wrongs and prays unjustly is sinful, and her supplication is not accepted. If the mother needs housing, the child must provide it for her without relinquishing his right to inheritance. However, if she is not in need, he is not obligated to relinquish his right, and he must treat her with piety and kindness.