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 aside, some authors did draw on a few genuinely Zoroastrian ideas. The "Oracles of Hystaspes", by "Hystaspes", another prominent magian pseudo-author, is a set of prophecies distinguished from other Zoroastrian pseudepigrapha in that it draws on real Zoroastrian sources. Some allusions are more difficult to assess: in the same text that attributes the invention of magic to Zoroaster, Pliny states that Zoroaster laughed on the day of his birth, although in an earlier place, Pliny had sworn in the name of Hercules that no child had ever done so before the 40th day from his birth. This notion of Zoroaster's