The Kitáb-i-Aqdas or Aqdas is the central book of the Baháʼí Faith written by Baháʼu’lláh, the founder of the religion, in 1873.^[1] The work was written in Arabic under the Arabic title al-Kitābu l-Aqdas (Arabic: الكتاب الأقدس‎ / al-Kitāb al-ʾaqdās), but it is commonly referred to by its Persian title, Kitáb-i-Aqdas (Persian: كتاب اقدس‎ / Ketâb Âqdas), which was given to the work by Baháʼu’lláh himself. It is sometimes also referred to as “the Most Holy Book”, “the Book of Laws” or the Book of Aqdas. The word Aqdas is a superlative form derived from the triconsonantal root Q-D-Š, denoting holiness or sanctity in Semitic languages.

Baháʼu’lláh had manuscript copies sent to Baháʼís in Iran some years after the revelation of the Kitáb-i-Aqdas in 1873, and in 1890–91 (1308 AH, 47 BE) he arranged for the publication of the original Arabic text of the book in Bombay, India.

The Aqdas is referred to as “the Mother-Book” of the Baháʼí teachings, and the “Charter of the future world civilization”.^[2] It is not, however, only a ‘book of laws’: much of the content deals with other matters, notably ethical exhortations and addresses to various individuals, groups, and places. The Aqdas also discusses the establishment of Baháʼí administrative institutions, Baháʼí religious practices, mysticism, laws of personal status, inheritance, criminal law, spiritual and ethical exhortations, social principles, miscellaneous laws and abrogations, and prophecies.( Ref: https://en.wikipedia.org/wiki/Kit%C3%A1b-i-Aqdas)