Is it permissible to refrain from visiting the maternal uncle's home due to the presence of a soothsayer (one of the uncle's wives) and to avoid mixing with them?

Connecting with relatives and kin is a religious obligation. If it is possible to meet with them and offer mutual advice without being negatively affected, there is no harm in that, while avoiding listening to the words of the mother accused of charlatanry. If her charlatanry is confirmed, it is obligatory to clarify the religious ruling to her children and husband so they can advise her and urge her to repent. However, if it is merely an accusation, one should not delve into it. A transgressor is shunned when there is hope of benefit from shunning or fear of religious harm from association.