《资治通鉴·唐纪·唐纪三十九》
关中地区遭蝗灾，又连绵大雨，米价一斗值一千多钱。
关中虫蝗、霖雨，米斗千馀钱。
The Guanzhong area suffered a locust plague and heavy continuous rainfall, with the price of one bushel of rice rising to more than one thousand qian.