《北史·列传·卷二十九》
承业同意他的谋略，派自己的儿子长孙子彦等率领骑兵与杨侃在恒农渡河，占据了石锥壁。
承业从之，令其子子产等领骑与侃于恆农北度，便据石锥壁。
Chengye agreed with his strategy and sent his son Changsun Zuyan and others to lead the cavalry to cross the river in Hengnong with Yang Kan and occupied Shizhuibi.