《三国志·魏书·诸夏侯曹传》
明帝因病垂危时，将曹爽召入内室，任命他为大将军，授予符节、斧钺，督领京城内外的各项军事事务，可以参与决定尚书事宜，还和太尉司马懿一起接受遗诏，辅佐少帝。
帝寝疾，乃引爽入卧内，拜大将军，假节钺，都督中外诸军事，录尚书事，与太尉司马宣王并受遗诏辅少主。
When Emperor Ming was seriously ill and near death, he summoned Cao Shuang to his inner chamber, appointed him as general, granted him the symbols of authority and axe, to supervise all military matters in the capital, to participate in Shangshu decisions, and together with Sima Yi, the Grand Tutor, to accept the edict, and to assist the young emperor.