《魏书·列传·卷九》
元勰推辞说： 臣下侍奉疾病没有时间，六军必须有所委托，事情不能两件同时进行，心力又衰竭。
勰辞曰： 臣侍疾无暇，六军须有所托，事不两兴，情力又竭。
Yuan Xie declined and said: The subordinate did not have the time to serve during the illness, the six armies had to be entrusted to someone, the event could not happen at the same time, and my strength had already withered.