《资治通鉴·魏纪·魏纪六》
当时只有曹爽一人在旁，刘放、孙资顺势推荐曹爽，并且说： 应当召回司马懿参与。 
时惟曹爽独在帝侧，放、资因荐爽，且言： 宜召司马懿与相参。 
Only Cao Shuang was there at the time, and Liu Fang and Sun Zi lost no time in recommending him, saying: We should recall Sima Yi to assist.