In it [the Kitáb-i-Aqdas] He … rules out the possibility of the appearance of another Manifestation ere the lapse of at least one thousand years.
(Bahá’u’lláh, The Kitáb-i-Aqdas, p. 13)
It is a propitious moment for the publication of this first authorized translation into English of the Mother Book of His Revelation, His “Most Holy Book", the Book in which He sets forth the Laws of God for a Dispensation destined to endure for no less than a thousand years. Of the more than one hundred volumes comprising the sacred Writings of Bahá’u’lláh, the Kitáb-i-Aqdas is of unique importance. “To build anew the whole world” is the claim and challenge of His Message, and the Kitáb-i-Aqdas is the Charter of the future world civilization that Bahá’u’lláh has come to raise up.
(Bahá’u’lláh, The Kitáb-i-Aqdas, p. 1)