《隋书·列传·卷三十二》
后因大义公主同随从的胡人私通，长孙晟先揭发这件事。裴矩请求出使，劝说都蓝可汗公开惩治大义公主。
后因公主与从胡私通，长孙晟先发其事，矩请出使说都蓝，显戮宇文氏。
Later, because Princess Dayi had an affair with a Hu attendant, Changsun Sheng exposed this matter first. Pei Ju asked to go on a mission, persuading Dulan Khan to publicly punish Princess Dayi.