《隋书·列传·卷十一》
周太祖班师时，赵煚请求留在洛阳招降纳叛，太祖听了他的。
及太祖班师，煚请留抚纳亡叛，太祖从之。
When Emperor Wu of Zhou withdrew, Zhao Bo requested to stay in Luoyang to recruit surrendered and rebel forces, and Emperor Wu approved his request.