《元史·本纪·卷三十三》
免征奉元路民间商税一年，命令所在官府设置常平仓储粮。
免征奉元路民间商税一年，命所在官司设置常平仓。
The commercial tax of the civilian population of Fengyuanlu was exempted for one year, and the relevant government offices were ordered to set up Changpingcang to store grain.