Zoroaster scholars, philosophers, and theologians to test his knowledge on religion and jurisprudence. Among the summoned scholars was a Zoroastrian High Priest. Al-Ridha questioned the priest on his beliefs saying,“Tell me about Zoroaster, whom you claim is a prophet; what is your evidence for his Prophethood?” to which the response was “We did not see him, but the tales of our ancestors informed us that he had legalized for us what no other person before had made legal.” Imam Al-Ridha responded “This is the case with all other nations. Tales had come to them about what the prophets had accomplished, what
Zoroaster name derive from the Middle Iranian variants of "Zarϑošt", which, in turn, all reflect Avestan's fricative "-ϑ-". In Middle Persian, the name is 𐭦𐭫𐭲𐭥𐭱𐭲 "Zardu(x)št", in Parthian "Zarhušt", in Manichaean Middle Persian "Zrdrwšt", in Early New Persian "Zardušt", and in modern (New Persian), the name is زرتشت "Zartosht". There is no consensus on the dating of Zoroaster, the Avesta gives no direct information about it, while historical sources are conflicting. Some scholars base their date reconstruction on the Proto-Indo-Iranian language and Proto-Indo-Iranian religion, and thus it is considered to have been some place in northeastern Iran and some time between