Mishnah for Leviticus 27:2

And in what is he different from both men and women? One does not burn terumah if it came into contact with his discharge, Neither is he liable for entering the temple while impure, unlike men or women. He must not be sold as a Hebrew slave, unlike men or women. He cannot be evaluated, unlike men or women. If one says: “I will be a nazirite, if he is neither a man nor a woman,” then he becomes a nazirite. Rabbi Yose says: the hermaphrodite is a unique creature, and the sages could not decide about him. But this is not so with a tumtum (one of doubtful), for sometimes he is a man and sometimes he is a woman.