《宋史·列传·卷九十》
不久徐禧失败战死，沈括因为西夏军队袭击绥德，而先去援救绥德，不能去援救永乐城，因而被贬为筠州团练副使。
已而禧败没，括以夏人袭绥德，先往救之。不能援永乐，坐谪均州团练副使。
Not long after, Xu Xi was defeated and died in battle. Shen Kuo went to the rescue of Suide first because the Western Xia army attacked Suide and couldn't go to the rescue of Yongle City, so he was demoted to the deputy governor of Junzhou.