《太平广记·卷一百九十八·文章一》
唐德宗贞元五年，初设中和节，皇上作了一首诗，众朝臣唱和，皇上下诏把这些诗的写本赐给客州的戴叔伦。
贞元五年，初置中和节，御制诗，朝臣奉和。诏写本赐戴叔伦于容州。
During the Zhenyuan era, in the fifth year of Emperor Dezong’s reign, a Zhonghe festival was established; the emperor wrote a poem, which was echoed by the officials of the court and the emperor ordered that a copy of these poems be presented to Dai Shulun of Kezhou.