《资治通鉴·唐纪·唐纪七》
高祖只以兄弟关系不睦责备他，将罪责推给了太子中允王、左卫率韦挺和天策兵曹参军杜淹，将他们一并流放到了州。
惟责以兄弟不睦，归罪于太子中允王珪、左卫率韦挺、天策兵曹参军杜淹，并流于巂州。
The Emperor only blamed the brothers for not getting along and put the blame on Wang, the Crown Prince's Zhongyun, Wei Ting, the general of the Left Guard, and Du Yan, a staff officer of the Heaven Planning Bureau. He exiled them to the prefecture.