《隋书·列传·卷三》
等到尉迟迥反叛时，天下骚乱，并州总管李穆五心不定，高祖令柳裘去劝说李穆，柳裘拜见李穆，晓之以利害，李穆大喜，于是归附高祖。
及尉迥作乱，天下骚动，并州总管李穆颇怀犹豫，高祖令裘往喻之。裘见穆，盛陈利害，穆甚悦，遂归心于高祖。
When Wei Chi Jing rebelled, the world was in chaos. Li Mu, the general manager of Bingzhou, was undecided. Gaozu ordered Liu Qiu to persuade Li Mu. Liu Qiu visited Li Mu, explained the pros and cons, and Li Mu was overjoyed, so he surrendered to Gaozu.