The claim is false and null because of the following reasons:
1) Returning means some dead people’s returning to the world in the period of time when the Excellency Mahdi (P.H.) emerges. So, if a person returns to the world instead of anybody else, it will metempsychosis and will be definitely false. A person who believes in it, he/she will be atheist. Returning means coming back of the person him/herself not a person who resemble him/her.
2) In the verses of the holy Quran, the returning of prophets hasn’t been mentioned; but the common rule of life and the prognosis in prophets’ invitations have been mentioned.