Concerning the use of alcoholic drinks and drugs the Guardian wishes you
to know that they have been explicitly forbidden in the "Kitab-i-Aqdas".
Opium is, undoubtedly, prohibited. But smoking, though allowed, is
discouraged. Various other points which may be raised in this connection
and which have not been explained in the Holy Writings have to be
carefully considered and acted upon by the future International House of
Justice which is the body empowered by Baha'u'llah to legislate in all
matters which have not been explicitly revealed in the Sacred Writings of
the Faith.