《资治通鉴·唐纪·唐纪七十》
十二有，庚辰朔，张承范等率军赶到潼关，在青草茂密处搜得村民一百来人，即让他们为役运石汲水，作守城的准备。
十二月，庚辰朔，承范等至潼关，搜菁中，得村民百许，使运石汲水，为守御之备。
On the first day of the twelfth lunar month, the Day of the Rat, Zhang Chengfan and his army arrived at Tongguan Pass. They found some hundred villagers in the lush grass, and made them transport rocks, draw water, and prepare to defend the city.