Zoroaster Moses, Jesus and Muhammad had all brought them, so why did you not believe in any of these prophets, having believed in Zoroaster, through the tales that came to you about him, informing that he brought forth what others did not?” Ahmadi Muslims view Zoroaster as a Prophet of God and describe the expressions of Ahura Mazda, the god of goodness, and Ahraman, the god of evil, as merely referring to the coexistence of forces of good and evil enabling humans to exercise free will. Mirza Tahir Ahmad, the fourth Caliph of the Ahmadiyya Muslim Community, in his book "Revelation,
Zoroaster some conjecture that it depicts the Yaz culture), and thus it is implausible that the Gathas and Rigveda could have been composed more than a few centuries apart. These scholars suggest that Zoroaster lived in an isolated tribe or composed the Gathas before the 1200–1000 BCE migration by the Iranians from the steppe to the Iranian Plateau. The shortfall of the argument is the vague comparison, and the archaic language of Gathas does not necessarily indicate time difference. Other scholars propose a period between 7th and 6th century, for example, c. 650–600 BCE or 559–522 BCE. The latest possible date