How can a father be convinced that holding Sufi dhikr gatherings at home is an innovation (bid‘ah), and is it permissible for a son to retract his promise to his father to continue doing so after his father's death if the father is not convinced?

Continuous charity (Sadaqah (definition) Jariyah) is among the enduring good deeds, and its reward continues after the death of its giver. However, it is regrettable that some people are not guided to choose permissible charity. This includes building zawiyas and lodges where dhikr (remembrance of God) is practiced in a manner not in accordance with the Prophet's guidance, and even contains elements that contradict the Sharia (definition) and oppose Tawhid (definition) (monotheism). Endowments (Waqf) are only valid for acts of worship and obedience to Allah. Therefore, an endowment for a shrine or grave that is worshipped besides Allah is not permissible. As for the method of persuasion, it must take into account the father's condition and the extent of his conviction in Sufism. If all possibilities for convincing him have been exhausted, then she may outwardly agree to his condition, and she is not obliged to fulfill it. Rather, she must prevent the establishment of this innovation, because a forbidden condition is not permissible to fulfill.