Doubt regarding relinquishment deed

sir my father died without writing a will. we are 2 brothers,one sister and my widow mother in total 4 members as heirs.. we three of us made a relinquishment deed in favour of my mother. now my question is what will happen after death of my mother to the property as our advocate has told that after your mother death it will again come to all three of u. sir plz clarify.