Zoroaster his subjects to adopt the religion of the Magians. Recalling other tradition, al-Tabari (i.681–683) recounts that Zaradusht accompanied a Jewish prophet to Bishtasb/Vishtaspa. Upon their arrival, Zaradusht translated the sage's Hebrew teachings for the king and so convinced him to convert (Tabari also notes that they had previously been "Sabi"s) to the Magian religion. The 12th-century heresiographer al-Shahrastani describes the Majusiya into three sects, the "Kayumarthiya", the "Zurwaniya" and the "Zaradushtiya", among which Al-Shahrastani asserts that only the last of the three were properly followers of Zoroaster. As regards the recognition of a prophet, Zoroaster has said: "They ask you
Zoroaster and Darius I. Zoroastrianism eventually became the official religion of Ancient Persia and its distant subdivisions from the 6th century BCE to the 7th century CE. Zoroaster is credited with authorship of the Gathas as well as the Yasna Haptanghaiti, hymns composed in his native dialect, Old Avestan, and which comprise the core of Zoroastrian thinking. Most of his life is known from these texts. By any modern standard of historiography, no evidence can place him into a fixed period, and the historicization surrounding him may be a part of a trend from before the 10th century that historicizes legends