《资治通鉴·唐纪·唐纪三十六》
庚申夜晚，安庆绪率领他的部下从苑门逃出，逃向河北，并在逃走前杀了所俘虏的朝廷将领哥舒翰、程千里等三十余人。
庚申夜，庆绪帅其党自苑门出，走河北；杀所获唐将哥舒翰、程千里等三十馀人而去。
On the evening of Gengshen, An Qingshuo led his troops to escape from the Yuanmen and flee to Hebei. Before he fled, he killed more than 30 people, including generals of the imperial court Goshukan, Cheng Qianli, and others.