《元史·本纪·卷十一》
十四日，派遣使臣代表皇帝祭祀五岳、四渎和后土大神。
辛亥，遣使代祀岳渎后土。
On the 14th, envoys were sent to represent the emperor in offering sacrifices to the five sacred mountains, the four major rivers, and the goddess Houtu.