《资治通鉴·唐纪·唐纪七》
他摘下佩刀交给尉迟敬德说： 您前去察看一下情况，如果他们没有前来的意思，您可以砍下他们的头颅，带着回来见我。 
取所佩刀授敬德曰： 公往观之，若无来心，可断其首以来。 
He took off his sword and handed it to Yuchijiongde, saying: You go and check the situation, if they don’t want to come, you can cut off their heads and bring them back to me. 