《资治通鉴·唐纪·唐纪四》
窦建德的士兵已经登上城堞，薛万均、薛万彻率领一百多人的敢死队从地道中出城到窦建德军背后，突然出现袭击窦军，窦建德军溃败逃走，被唐军斩首一千多级。
建德兵已攀堞，薛万均、薛万彻帅敢死士百人从地道出其背，掩击之，建德兵溃走，斩首千馀级。
Dou Jiande's soldiers had already climbed atop the battlements. Xue Wanjun and Xue Wanche led a hundred-man suicide squad out of the city through tunnels to suddenly attack the Dou Jiande army from behind, causing them to collapse and disperse, with over one thousand heads being taken by the Tang army.