《太平广记·卷二百九十三·神三》
到泰山的时候，他未敢悄然而过，走进那片林子敲击树干，自报姓名后说：我刚从长安回来，想向神君回禀一下音信。
至太山侧，不敢潜过，遂扣树，自称姓名，从长安还，欲启消息。
When he arrived at Mount Tai, he did not dare to pass through quietly, but walked into the woods and knocked on the trunk of the tree to tell his name and said: I just came back from Chang'an and wanted to report the news to the god.