《宋史·列传·卷二十三》
到这时，赵普又秘密上奏说： 我是开国旧臣，被权幸大臣中伤。 于是说到昭宪遗命以及先朝上书自辩之事。
至是，普复密奏： 臣开国旧臣，为权幸所沮。 因言昭宪顾命及先朝自诉之事。
By this time, Zhao Pu had secretly submitted a memorial saying: “I am an old retainer of the founding emperor and have been slandered by favored and powerful ministers.” And so he went on to mention Zhaoxian's testament and what the previous dynasty had written about defending itself.