《宋史·本纪·卷二十七》
初五，奖赏承州水寨首领徐康等人阻击金军之功，升官不等，并且免除承、楚、泰州水寨民兵赋役十年。
庚戌，赏承州水砦首领徐康等要击金兵之功，转官有差，仍蠲承、楚、泰州水砦民兵赋役十年。
On the fifth, Xu Kang, the leader of Chengzhou's water stronghold, and others were rewarded for their efforts in resisting the Jurchen army. They were promoted to various ranks and the people of Chengzhou, Chu and Taizhou were exempted from military service and taxes for ten years.