《宋史·列传·卷一百一十七》
李纲上奏说 ：臣不久前得圣旨给予空白告敕，遇事可以不经请示而相机行事。
纲奏： 顷得旨给空名告敕，以便宜行事。
Li Gang reported, "Not long ago, Your Majesty issued an imperial decree granting me blank authorization to handle matters at my discretion without having to seek prior imperial approval."