《资治通鉴·唐纪·唐纪三十七》
刘龙仙来不及拉弓发箭，绕道走上河堤，被白孝德追上，砍下头颅，持之以归。
龙仙矢不及发，环走堤上。孝德追及，斩首，携之以归。
Liu Longxian did not have time to draw his bow and shoot an arrow, so he detoured and went up the riverbank, where Bai Xiaode chased him, cut off his head, and took it back with him.