《旧唐书·列传·卷四》
如今部队滞留在武牢城外，时间拖得长了，白白地自己劳苦自己，事情只怕办不成。 
今顿兵武牢之下，日月淹久，徒为自苦，事恐无功。 
"Now the troops are stranded outside of Wulaocheng. If we delay here for too long, we will only exhaust ourselves. We cannot let things just continue like this."