《资治通鉴·宋纪·宋纪十六》
然后假传圣旨，命外庭演奏音乐。陈奉伯把刘昱的人头，藏在袍袖里面，跟往常一样，神色自若，宣称奉皇帝派遣，打开承明门出宫，把人头交给王敬则。
敕厢下奏伎陈奉伯袖其首，依常行法，称敕开承明门出，以首与敬则。
Then he falsely transmitted the imperial edict, ordering the outer court to play music. Chen Fengbo hid Liu Yu's head in his robe sleeves, and as usual, he looked calm, claiming to have been sent by the emperor to open the Chengming Gate and leave the palace, and handed the head to Wang Jingze.