《元史·本纪·卷七》
我们认为今年沿边境地区的州郡，仍然应当按照原来的办法交纳粮食，内地的州郡，查实他们的户数，令他们折合成钱钞，就近在沿边境地区实行平价购买，这样彼此近乎于互相有利了。 皇上决定说 ：可以。 
臣议今岁沿边州郡，宜仍其旧输粮，内地州郡，验其户数，俾折钞就沿边和籴，庶几彼此交便。 制曰： 可。 
We consider that for the prefectures and counties along the border areas this year grain should still be levied in the original manner, while for the prefectures and counties in the interior, the authorities should verify the number of households and instruct them to convert the tax into money, which should be used to purchase grain at a standard price in the border areas, thus making it mutually advantageous for all parties. His Majesty decided that this was acceptable.