《资治通鉴·唐纪·唐纪四十四》
秋季，七月，甲申，德宗任命礼部尚书李揆为入蕃会盟使。
秋，七月，甲申，以礼部尚书李揆为入蕃会盟使。
In the seventh month of autumn, Jia Shen, Emperor Dezong appointed Li Kui, Minister of the Ministry of Rites, as the envoy for the meeting of states.