《金史·列传·卷二十三》
大定二十四年，金世宗到达上京，显宗留守，一同留下的还有完颜永中。
二十四年，世宗幸上京，显宗居守，并留永中。
In the 24th year of the Great Ding reign, Emperor Shizong of Jin arrived in the Shangjing capital, and Emperor Xizong stayed behind, along with Wanyan Yongzhong.