《魏书·列传·卷七十二》
稍晚在赵、魏之间师事徐遵明。当时有渔阳人鲜于灵馥也聚徒讲学，而遵明声誉还没多高，著录尚少。
晚乃师事徐遵明于赵魏之间。时有渔阳鲜于灵馥亦聚徒教授，而遵明声誉未高，著录尚寡。
A little later, he studied with Xu Zunming between Zhao and Wei. At that time, Xianyu Lingfu from Yuyang also gathered disciples to give lectures, but Zunming's reputation was not yet very high, and there were not many records.