《隋书·列传·卷十一》
高祖因为杨尚希是宗室有名望的人，又背叛尉迟迥而回来，对他很好。
高祖以尚希宗室之望，又背迥而至，待之甚厚。
Gaozu showed a lot of favor to Yang Shangxi because he was a prestigious member of the clan and he had betrayed Wei Chi Jiong and returned to him.