Since the Ḥuqúqu’lláh has, according to the injunction
in the Book, been designated as one of the institutions of the Cause,
and inasmuch as the fulfilment of this obligation is binding on the
people of Bahá, therefore it is deemed appropriate that
your Spiritual Assembly should fully familiarize the dear friends in
Persia with the significance of this momentous responsibility and to
promulgate gradually in the entire community such ordinances related to
Ḥuqúqu’lláh as are laid down in His perspicuous Book.
Obviously in pursuance of the explicit Texts solicitation of the
Ḥuqúqu’lláh is not permissible, but it is the
responsibility of those Trustees of the Cause to address appeals of a
general character to the dear friends, so that they may become more
informed about this essential obligation. God willing, through the
occasional reminders issued by your Assembly, they may gain the
privilege and honour of achieving this benevolent deed—a deed that
draws forth heavenly blessings, serves as a means of purifying the
earthly possessions of the devoted friends, and promotes the
international activities of the people of Bahá.
(27 October 1963, written by the Universal House of Justice to the National Spiritual Assembly of Iran, translated from the Persian)