《金史·列传·卷三十七》
先前，郑王永蹈任职定武军，镐王永中任职平阳府，相继获罪，受牵连的人很多，皇帝怀疑他们有同党，也许因为这个缘故，命镒节度定武，随即又请他管理平阳。
先是，郑王永蹈判定武军，镐王永中判平阳府，相继得罪，连引者众，上疑其有党，或命节度定武，继又知平阳焉。
Previously, Zheng Wang Yongtao served as the Dingwu Army, and Hao Wang Yongzhong served as the Pingyang Mansion. Both were convicted and many people were implicated. The emperor suspected that they had accomplices. Maybe because of this, Yi was ordered to be the Jiedushi of Dingwu, and he was immediately asked to manage Pingyang.