"Other authorities say that Kutaibah granted peace for 700,000 dirhams and entertainment for the Moslems for three days. The terms of surrender included also the houses of the idols and the fire temples. The idols were thrown out, plundered of their ornaments and burned, although the Persians used to say that among them was an idol with which whoever trifled would perish. But when Kutaibah set fire to it with his own hand, many of them accepted Islãm."
January 1, 1970
https://en.wikiquote.org/wiki/Al-Baladhuri