What is the solution to avoid inviting a specific woman who causes family problems, and how can the mother be persuaded not to invite her while avoiding her anger?

What the mother does by maintaining ties with those her own mother loved is one of the greatest acts of righteousness (birr). It is not permissible to forbid her from this act or to prevent her from it without a valid excuse. It is not permissible to harbor ill suspicions about a Muslim without clear evidence. However, if it is established with certainty that this woman deals with sorcerers, then the mother has the right to prevent harm from her children by stopping inviting her. There is no specific supplication to alienate her. Family gatherings must be free of intermingling between women and non-mahram men. The sister's fiancé and the sister's husband are not considered mahram.