《资治通鉴·唐纪·唐纪三十》
玄宗把此事归功于宰相，庚辰，赐李林甫晋国公爵位，牛仙客国公爵位。
上归功宰辅，庚辰，赐李林甫爵晋国公，牛仙客豳国公。
Xuanzong attributed this achievement to the chancellors, and on Geng Chen, he bestowed upon Li Linfu the title of Duke of Jin and Niu Xianke the title of Duke of Guo.