Is it permissible for a person to call his father's mother "my mother"?

Question:
May Allah reward you, Your Eminence, father. The questioner asks: If a person calls his father's mother "my mother," is that permissible for him?

Answer:
Glory be to Allah. His father's mother is his mother, his grandmother. His mother's mother is also his grandmother, and no matter how high up the lineage goes, she is his mother. Therefore, she inherits if the mother is absent, because the grandmother inherits since she is a mother. Yes.