Does a divorce vow uttered by a person suffering from schizophrenia, who hears voices speaking to him, take effect?

The divorce of a sick person does not occur if their illness affects their mind, rendering them like an insane person; this is by the agreement of jurists. However, if their illness does not affect their mind, then their divorce does occur, and this is what the jurists have concluded. Based on this, if it is proven that schizophrenia affects the mind, then the divorce does not occur; otherwise, the divorce is valid.