《旧唐书·本纪·卷十三》
八月二十八日，以河东行军司马严绶任检校工部尚书衔、兼太原尹、御史大夫、河东节度使。
八月戊午，以河东行军司马严绶检校工部尚书、兼太原尹、御史大夫、河东节度使。
On the 28th day of the eighth lunar month, Yan Shou, the acting Sima of Hedong Army, was appointed as the Minister of Works, the Lord of Taiyuan, the Minister of Censors, and the Hedong Jiedushi.