《汉书·志·食货志下》
遵守调节供求，稳定物价的措施，使有万户人口的邑一定有万钟的收藏，用绳穿着的钱有千万串；干户人口的邑一定要有千钟的收藏，用绳穿的钱有百万串。
守准平，使万室之邑必有万钟之臧，臧繦千万；千室之邑必有千钟之臧，臧繦百万。
Adhering to the measures adjusting supply and demand and stabilizing prices, so that a city with 10,000 households must have 10,000 zhong (ancient Chinese unit of weight) of collection, and there must be 10 million strings of money strung with ropes; A city with a population of 1,000 households must have a collection of 1,000 zhong, and there must be 1 million strings of stringed money.