《太平广记·卷八十五·异人五》
有个姓李的流浪人，从不说自己叫什么名字，经常身披蓑衣头戴草帽腰里拴着个布口袋，在城里卖灭鼠药。如有人来买药，他就说： 此药不仅能杀死老鼠，同时还能治疗人的百病。
李客者，不言其名，常披蓑戴笠，系一布囊，在城中卖杀鼠药，以一木鼠记。或有人买药，即曰： 此不惟杀鼠，兼能疗人众病。
There was a homeless person with the family name Li. He never told anyone his name. He often wore a straw hat, a raincoat, and a piece of cloth around his waist. He sold rat poison in the city. Whenever someone came to buy the poison, he would say, "This poison can not only kill rats, it can also cure all kinds of diseases in people."