《元史·本纪·卷十二》
皇上有旨说 ：蒙古人被利益所引诱，也和往日不同了，还是选择可以信任的派去。 
有旨： 蒙古人为利所汩，亦异往日矣，其择可任者使之。 
The Emperor issued a decree saying: The Mongols are also different from how things used to be, enticed by their interests; it is better to select trustworthy people to send out.