《太平广记·卷三百四十五·鬼三十》
老吏说：我能换它，可是我家贫穷，住在兴道里，如果能给你换成，希望你给三万钱作为酬劳。
吏曰：某能换之。然某家贫，居兴道里，倘换得，愿以钱三万见酬。
The old official said: I can change it, but my family is poor and live in Xingdao. If you can change it for you, I hope you can give 30,000 yuan in return.