《资治通鉴·宋纪·宋纪八》
戊申，源贺同尚书长孙渴侯率兵严密把守皇宫，派刘尼、陆丽将长孙抱在马上，进入平城，源贺、长孙渴侯打开宫门，迎接皇孙一行。
戊申，贺与尚书长孙渴侯严兵守卫宫禁，使尼、丽迎皇孙于苑中。丽抱皇孙于马上，入平城，贺、渴侯开门纳之。
In the Wushen year, the Buddhist monk Yuan He and the Shangshu Changsun Kehou led their soldiers to strictly guard the imperial palace. They ordered Liu Ni and Lu Li to carry Changsun on their horses and enter Pingcheng. Yuan He and Changsun Kehou opened the palace gate to welcome the emperor's grandson and his party.