Effects of Zoroastrianism on China if the Anshi Rebellion succeeded in overthrowing the Tang Dynasty?

IOTL, An Lushan had a shot in overthrowing the Tang Dynasty. Had his forces captured the Tang Emperor and his family as they tried to evacuate Chang'an, the Tang Court's resistance towards the Yan Rebels likelyh would have fragmented. Little known on this forum was the fact that An Lushan and his immediate subordinates like Shi Shiming were in fact Zoroastrians, with An Lushan proclaiming himself an avatar of Ahura Mazda/Saoshyant in order to buy support from the Sogdian community and his own followers. Suppose that An Lushan or Shi Shiming succeeded, what would be the effects of Zoroastrianism on China?

Wrong forum: Asked mods to send this to pre-1900.
 
Top