《太平广记·卷七十九·方士四》
杜说： 小时候曾记得一个符，很能除去老鼠，不知道现在有没有灵验，请你替我试试看，或许能成，那就可以使这座宅院干干净净，永无老鼠。 
杜曰： 弱年曾记得一符，甚能却鼠，即不如今有验否，请以试之，或有征，当可尽此室宇，永无鼠矣。 
Du said: "When I was young, I remember a talisman that was good at getting rid of mice. I do not know if it is still effective now, but please try it out for me. Perhaps it will work, and we can make this house clean and free of mice forever." 