《宋史·列传·卷二百三十二》
当初，汪伯彦已离开相州，金人抓住他的儿子军器监丞汪似，让他割地，包括相州。相州守臣赵不试坚守城池，金人就把汪似带到国内，很久他才回来。
初，伯彦既去相州，金人执其子军器监丞似，使割地以至相州，守臣赵不试固守不下，遂拘而北，久之乃还。
At that time, when Wang Boyan had left Xiangzhou, the Jin people captured his son, Wang Si, the official of military equipment supervision, and asked him to cede the land, including Xiangzhou. The defender of Xiangzhou, Zhao Bushi, defended the city stubbornly. The Jin people took Wang Si to their country and he did not come back until a long time later.