Once a boy and a girl (both were adults) liked each other. They were afraid that they are in haraam relationship. So they, make a decision to get married. but they didn't follow exact rules rather both of them, said exactly the following statements. The boy said, I take Allah as witness and accept you as my wife. Similarly the girl said, I take Allah as witness and accept you as my husband. Now my question is, are they really married? Please answer.