《北史·列传·卷二十六》
隋文帝杨坚任定州总管时，请他为记室，对他十分亲近敬重。
隋文帝为定州总管，补记室，甚亲敬之。
When Emperor Wen of Sui, Yang Jian, was the governor of Dingzhou, he invited him to be his secretary and treated him with great kindness and respect.