《资治通鉴·唐纪·唐纪七十七》
先去攻打贝州，予以攻克，城内一万余户居民，全都遭受屠杀，尸体被扔弃到清河水中。
攻贝州，拔之，城中万馀户，尽屠之，投尸清水。
They first attacked and conquered Beizhou. All one hundred thousand residents in the city were slaughtered. Their bodies were dumped in the Qinghe River.