《三国志·魏书·武帝纪》
当初讨伐袁谭时，一些百姓逃避破冰行船的差事，曹公下令官吏们不准接受他们投降。
初讨谭时，民亡椎冰，令不得降。
When Yuan Tan was defeated in the past, some people avoided the conscription to break the ice for ships, and the great general Cao commanded that government officials not be allowed to accept their surrender.