《资治通鉴·唐纪·唐纪四十》
乙卯，唐代宗颁下制诰，追谥李为承天皇帝。庚申，将李埋藏在顺陵。
乙卯制，追谥倓曰承天皇帝；庚申，葬顺陵。
In the Yimao year, the Emperor Daizong of the Tang Dynasty issued an imperial decree to posthumously grant Li the Emperor Chengtian's title. In the Gengu year, Li was buried in the Shuling Tomb.