《旧唐书·列传·卷三十六》
乾封初年，高宗下敕 ：素节既有旧疾病，宜不须入朝。 
乾封初，下敕曰： 素节既旧疾患，宜不须入朝。 
In the early years of Qianfeng, Emperor Gaozong issued an edict: Sujie has a long-standing illness and should not have to enter the court.