The term “Mother Book” is generally used to designate the
central Book of a religious Dispensation. In the Qur’án and Islamic Hadíth, the
term is used to describe the Qur’án itself. In the Bábí Dispensation, the Bayán
is the Mother Book, and the Kitáb-i-Aqdas is the Mother Book of the
Dispensation of Bahá’u’lláh. Further, the Guardian in a letter written on his
behalf has stated that this concept can also be used as a “collective term
indicating the body of the Teachings revealed by Bahá’u’lláh”. This term is
also used in a broader sense to signify the Divine Repository of Revelation. - The Universal House of Justice (The ‘Notes’ section of the Kitab-i-Aqdas)
