《元史·列传·卷四十二》
又不久，武仙派人去真定城中联络一些人为内应，夜间斩关而入，占据真定。
未几，仙复令谍者，结死士于城中大历寺为内应，夜斩关而入，据其城。
Shortly after, Wuxian sent people to Zhenjing to collaborate with some people as their inside force, then entered the city by hacking the gate at night and took Zhenjing.