《太平广记·卷三·神仙三》
官府把买了那两件宝物的人抓来审问，买者说他是个商人，从关外来，住在街市上。
有司诘之，买者乃商人也，从关外来，宿鄽市。
Upon hearing this, the government immediately summoned the person who bought the two treasures and interrogated him. The buyer said that he was a businessman who came from outside the Guan, and lived in the market.