《资治通鉴·梁纪·梁纪六》
胡琛派遣手下将领宿勤明达侵扰豳、夏、北华三州，北魏派遣都督北海王元颢统率众将去讨伐。
胡琛遣其将宿勤明达寂豳、夏、北华三州，壬午，魏遗都督北海王颢帅诸将讨之。
Hu Chen sent the subordinate general Xu Qin Ming Da to harass the three states – Bin, Xia, and Bei Hua. Northern Wei sent the governor of Beihai, King Yuan Hao, to lead the generals to punish them.