《辽史·本纪·卷二十八》
二月初四，侍御司徒挞不也等讨伐张家奴，接战于祖州，我军败绩。
二月戊辰，侍御司徒挞不也等讨张家奴，战于祖州，败绩。
On the fourth of the second month, Shiyushi Tuyeba and others attacked Zhang Jianu, who fought with them at Zu Zhou, and our army was defeated.