《旧唐书·本纪·卷九》
六年正月一日，北海太守李邕、淄川太守裴敦复都因为事情牵连王曾、柳责力，派使者就地杀了二人。
六载正月辛巳朔，北海太守李邕、淄川太守裴敦复并以事连王曾、柳勣，遣使就杀之。
On the first day of the first month of the sixth year, Beihai Prefect Li Yong and Zichuan Prefect Pei Dunfu were implicated in the case of Wang Zeng and Liu Zeli and had envoys kill them on the spot.