《资治通鉴·后周纪·后周纪五》
世宗听说南唐数百艘战舰停泊在东州，将要赶赴入海口扼守通往苏州、杭州的路，便派遣殿前都虞候慕容延钊带领步兵、骑兵，右神武统军宋延渥带领水军，沿江而下。
上闻唐战舰数百艘泊东氵布州，将趣海口扼苏、杭路，遣殿前都虞候慕容延钊将步骑，右神武统军宋延渥将水军，循江而下。
Emperor Shizong heard that hundreds of Southern Tang ships were anchored in Dongzhou and that they were going to rush to the estuary to guard the route to Suzhou and Hangzhou, so he sent Murong Yanzhao, the director of the Palace Guards, to lead infantry and cavalry, and Song Yanwo, the commander of the Right Divine Martial Forces, to lead the navy down the river.