《资治通鉴·宋纪·宋纪九》
这时正赶上严道育的两个婢女就要被押到朝廷。癸亥夜晚，刘劭伪造了文帝的诏书说： 鲁秀图谋反叛，命令你清晨守住宫门，率领众兵入宫。 
因使张超之等集素所畜养兵士二千馀人，皆被甲；召内外幢队主副，豫加部勒，云有所讨。
At this time, it just so happened that Yan Daoying's two maids were about to be taken to the imperial court. On the night of Kuei Hai, Liu Shao forged Emperor Wen's edict and said: "Lu Xiu plans to rebel, I order you to guard the palace gate at dawn and lead your troops into the palace."