Persian hagiography This material formed the basis for the surviving hagiographical material of Zarathustra, which is found in Middle Persian or Pahlavi texts including the "Dēnkard" and the "Wizidagiha", and in New Persian texts including the "Zaratosht-nama" and the "Shahnameh". Using and developing the historiographical methods of the "muḥaddithūn" (scholars of the sayings and history of the Prophet), Persian scholars drew on oral tradition and their own observations to write about holy figures. However, many hagiographies also drew on earlier written sources, often adapting those sources to reflect the writers' own view of sainthood. For example, in the twelfth century CE, Muḥammad
Zoroaster that literature was predominantly Greek, though at one stage or another various parts of it passed through Aramaic, Syriac, Coptic or Latin. Its ethos and cultural matrix was likewise Hellenistic, and "the ascription of literature to sources beyond that political, cultural and temporal framework represents a bid for authority and a fount of legitimizing "alien wisdom". Zoroaster and the magi did not compose it, but their names sanctioned it." The attributions to "exotic" names (not restricted to magians) conferred an "authority of a remote and revelatory wisdom." Among the named works attributed to "Zoroaster" is a treatise "On Nature" ("Peri