《资治通鉴·唐纪·唐纪二十五》
这时左右羽林军将士都驻扎在玄武门，等到夜色降临之际，葛福顺和李仙凫都来到李隆基处，求问起事的信号以便行事。
时羽林将士皆屯玄武门，逮夜，葛福顺、李仙凫皆至隆基所，请号而行。
At this time, the soldiers of the Left and Right Feathers were stationed at Xuanwu Gate, and when nightfall came, Ge Fushun and Li Xianfu came to Li Longji, asking for the signal of the uprising so they could act.