《周书·列传·卷三十八》
秘书虽然管辖着作，但是不参与撰写史事，而从柳纠任此职，开始监掌撰写史事。
秘书虽领著作，不参史事，自虬为丞，始令监掌焉。
Although the secretary is in charge of writing, he does not participate in writing historical events. Starting with Liu Jiu's appointment, he began to supervise and write historical events.