《北史·本记·卷一》
由于南迁的策略多出自宣帝和献帝，所以当时的国人把两人同时叫做推寅，也就是俗话中所说的钻研的意思。
其迁徙策略，多出宣、献二帝，故时人并号曰推寅，盖俗云钻研之义。
Since the decision to move south was made mostly by Xuan Emperor and Xian Emperor, the people of the time called the two of them pushers, which is a colloquialism for researchers.