《资治通鉴·唐纪·唐纪五十六》
加之，天色阴暗，由张柴村往东去的道路，都是官军从来没有走过的，人人都暗自以为肯定活不成了。但是，他们畏惧李，不敢违抗命令。
天阴黑，自张柴村以东道路，皆官军所未尝行，人人自以为必死，然畏愬，莫敢违。
In addition, the weather was gloomy. The roads leading east from Zhangcai Village were never traveled by the imperial army before, and everyone secretly believed that they would definitely die. However, they were afraid of Li, so they did not dare to disobey the order.