《太平广记·卷四百八十一·蛮夷二》
祭祀完了，这些东西又会自动消失。武则天让人验证这事，果然不虚假。
天后使人验之，不妄。
After the sacrifices were finished, these things would disappear automatically. Wu Zetian had someone verify this and found that it was true.