Is there a concept of "disobedience of parents towards their children" in the religion?

The Sharia (definition) has encouraged affection and love among Muslims, especially between parents and children, and kin. What you have mentioned about the dispute and the strange behavior of the mother in refusing reconciliation and cutting off communication is a form of severing ties of kinship, which is among the gravest sins. We advise you to pray for their guidance and to try to reach out to them and mediate through people of goodness for reconciliation.