《明史·志·卷五十六》
但是内地商人安然坐收利益，边地商人速途运送，辛劳和逸乐不平均，所以支取河盐以使边地商人获益。
但内商安坐，边商远输，劳逸不均，故掣河盐者以惠边商也。
However, the merchants in the interior of the country were able to sit back and reap the benefits, while the merchants in the border regions had to transport the salt quickly, so the labor and leisure were not evenly distributed, so the salt from the river was drawn to benefit the merchants in the border regions.