《太平广记·卷一百五十一·定数六》
上书后十天，德宗去了奉天，后悔没有采纳姜公辅的意见。于是在行宫下令提升姜公辅为给事中平章事，即丞相。
疏入十日，德宗幸奉天，悔不纳姜言，遂于行在擢姜为给事中平章事。
Ten days after the memorial, Emperor Dezong went to Fengtian and regretted not adopting Jiang Gongfu's advice. Therefore, he ordered to promote Jiang Gongfu to Ping Zhangshi and Xiangcheng, or Prime Minister, in the Xinggong.