…in every subsequent Revelation, the return of the former
Revelation is a fact, the truth of which is firmly established. Inasmuch as the
return of the Prophets of God, as attested by verses and traditions, hath been
conclusively demonstrated, the return of their chosen ones also is therefore
definitely proven. This return is too manifest in itself to require any
evidence or proof.
- Baha’u’llah (‘The Kitab-i-Iqan’)