From Baha’i Glossary
This is the book revealed by Gabriel for Fatimih, the
daughter of Prophet Muhammad, as consolation after her Father's death. It is
believed by Shi'ih Islam that this book would be in the possession of the
Qa’im, their Promised One. This book is identified in the Baha’i Faith with the
Hidden Words, revealed by Baha’u’llah.