《资治通鉴·晋纪·晋纪二十七》
恰巧天下大雨，后秦的军营积水三尺，环绕军营百步以外，积水仅仅一寸多而已，后秦的军队又振奋了起来。
会天大雨，后秦营中水三尺，绕营百步之外，寸馀而已，后秦军复振。
It happened to be a heavy rain in the world, and the Hou Qin barracks were flooded three feet deep, surrounding the barracks only a hundred steps away, and the flood was only an inch or more, and the Hou Qin army cheered up again.