《资治通鉴·唐纪·唐纪一》
宇文智及和孟秉在宫城外面集合了一千多人，劫持了巡夜的候卫虎贲冯普乐，布署兵力分头把守街道。
智及与孟秉于城外集千馀人，劫候卫虎贲冯普乐布兵分守衢巷。
Yuwen Zhiji and Meng Bing assembled 1,000 outside of the palace, attacked and captured one of the night guards, Feng Pule, and deployed troops to control the streets.