《资治通鉴·唐纪·唐纪二十六》
到这时候，唐睿宗下食寻找裴炎的后人，只有裴先一人在世，于是将他任命为詹事丞。
至是求炎后，独伷先在，拜詹事丞。
At this time, Emperor Ruizong of Tang ordered a search for Pei Yan's descendants. Pei Xian was the only one alive, so he was appointed Assistant of the Chamberlain of Gentlemen Attendants.