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 as Persian or Perso-Median Zoroaster; Ctesias located him in Bactria, Diodorus Siculus placed him among Ariaspai (in Sistan), Cephalion and Justin suggest east of greater Iran whereas Pliny and Origen suggest west of Iran as his birthplace. Moreover, they have the suggestion that there has been more than one Zoroaster. On the other hand, in post-Islamic sources Shahrastani (1086–1153) an Iranian writer originally from Shahristān, present-day Turkmenistan, proposed that Zoroaster's father was from Atropatene (also in Medea) and his mother was from Rey. Coming from a reputed scholar of religions, this was a serious blow for the various regions who