《隋书·列传·卷十五》
过了一会，有只公鸡在庭院里鸣叫，高祖让庞晃射它，说： 射中了有赏，富贵之日，拿这事作为应验。 
顷之，有一雄雉鸣于庭，高祖命晃射之，曰： 中则有赏。然富贵之日，持以为验。 
After a while, a rooster crowed in the yard. Emperor asked Pang Huang to shoot it. He said: If you hit it, I will reward you, and when I become rich and powerful, this will be a proof.