Is it obligatory for a man to communicate with his maternal aunt whom he has never seen or known, given that there is an old dispute between her and his mother, and would his failure to communicate be considered abandonment?

The maternal aunt is like a mother; maintaining ties with her is obligatory, and severing ties with her is a great sin. This man should maintain ties with his maternal aunt to the extent and in the manner possible for him, such as calling her or sending her greetings. Islamic law has not specified a particular method for maintaining kinship ties; rather, custom is the reference point in this regard. Maintaining ties can be through calling, correspondence, greetings, visiting, and anything that custom considers as maintaining ties. Maintaining kinship ties has various degrees, and the lowest is avoiding abandonment and maintaining ties through speech, even if only with greetings. It varies according to one's ability and need. He should not be prevented by the disputes that occurred between her and his mother, as this does not negate her right.