The Persian Bayán is one of the principal scriptural writings of the Báb, the founder of Bábi religion, written in Persian. The Báb also wrote a shorter book in Arabic, known as the Arabic Bayán.
The book was intended to be composed of nineteen 'unities' each of nineteen chapters, consisting of a total of 361 sections, which had numerical significance, but this was left incomplete and stops in the ninth 'unity'. It was intended to be finished by "He whom God shall make manifest", a messianic figure in the Báb's writings. Baháʼís consider Baháʼu'lláh's Kitáb-i-Íqán as its completion.
Laws
Among the main themes of the Bayán are the mystic character of action, the prohibition of causing grief to others, refinement, perfection and the spiritualization of life and language. Nader Saiedi states that the severe laws of the Bayán were never meant to be put in practice, because their implementation depended on the appearance of He whom God shall make manifest, while at the same time all of the laws would be abrogated unless the Promised One would reaffirm them. Saiedi concludes that these can then only have a strategic and symbolic meaning, and were meant to break through traditions and to focus the Báb's followers on obedience to He whom God shall make manifest. The Báb stresses the importance of the recognition of the symbolic nature and spiritual meaning of each of his laws. In the Baháʼí view, Baháʼu'lláh is regarded as this Promised One. In his Kitab-i-Aqdas, Baháʼu'lláh cancelled specific laws of the Bayan, while confirming others.
Right of completion
Certain early researchers of the religion believed that the right of completing the Bayán was conferred to Subh-i Azal. However, more modern scholarship shows that that interpretation is flawed because Subh-i-Azal is only given the right to complete the Bayán with the permission of He whom God shall make manifest, and that Subh-i-Azal was instituted as a nominal head and asked to preserve the religion until He whom God shall make manifest would arrive. The Báb eliminated any form of successorship or vicegerency from his religion and stated that no one else's writings would be authoritative after his death to the time of He Whom God shall make Manifest. Some of the followers of Subh-i-Azal state that the Báb actually made Subh-i-Azal his vicegerent because the Báb in a tablet written to Azal stated that he should manifest the remaining paths of the Bayán if He Whom God shall make Manifest is made manifest during Azal's days. The Azalis interpret this to mean the Báb gave Sub-i-Azal the right to complete the unfinished text of the Bayán. However, the Báb affirms to Subh-i-Azal himself that He Whom God shall make Manifest may appear in Subh-i-Azal's own lifetime, and thus eliminates any viceregency for Subh-i-Azal. One of the texts that the Azalis use to state that Subh-i-Azal was appointed as a viceregent is the controversial book Nuqtutu'l-Kaq, but the book's statements are very contradictory and problematic. In one section of the book the author states that the Bayán may become abrogated within a few years of the Báb's death, and that He Whom God shall make Manifest may appear during Azal's time, then later he states that the abrogation of the Bayán and the appearance of the Promised One could not occur before two thousand years. Even later the author makes the proposition that the Promised One is Subh-i-Azal himself, showing that the author truly did not believe that the appearance of the Promised One would have to take two thousand years. The proposition that He Whom God shall make Manifest would take two thousand years is absurd since the Báb discusses the advent of He Whom God shall make Manifest during Subh-i-Azal's lifetime as a conditional point for Subh-i-Azal to take certain action. An alternative interpretation of the passage in question is that Subh-i-Azal is asked to instead to making public or distribute the eight copies of the Bayan to eight people mentioned in the passage.
