《北史·列传·卷三十六》
高欢大为吃惊，召集孙腾，命他赶快到尔朱兆那里，向他表示真诚地祝贺，并秘密访察孝庄帝被囚禁的地方，准备在半路上用武力将他迎回，用大义号召天下。
神武大惊，召腾，令驰驿诣兆，示以谒贺，密观天子所在，当于路邀迎，唱大义于天下。
Gao Huan was shocked to hear this, and he summoned Sun Teng and ordered him to hasten to Erzhu Zhao’s camp, where he was to make a show of congratulating Erzhu Zhao and in secret scout out the location of Emperor Xiaozhuang’s captivity, with the intent of using force to intercept and rescue him along the way, and to then rally the realm to their cause.