《后汉书·本纪·孝桓帝纪》
诏令说： 朝廷政治失之中和，天降旱灾，河流有水患，蝗虫遍野，残害百谷，太阳缺光，饥荒一再发生。
诏曰： 朝政失中，云汉作旱，川灵涌水，蝗螽孽蔓，残我百谷，太阳亏光，饥馑荐臻。
An imperial edict said: the politics of the court are off-balanced, a drought has befallen Heaven, the rivers have flooded, locusts are everywhere, and have harmed all crops, the sun is weak, and famines are happening continuously.