《魏书·列传·卷七》
征召入京练兵，高祖在皇信堂接见，告诫他说： 老人家孝行昭著于家庭，美名传遍全国，时常钦佩您的忠诚美德，想尽情交谈一次，所以利用练兵，远召您奔赴朝廷。
征赴讲武，高祖引见于皇信堂，戒之曰： 翁孝行著于私庭，令问彰于邦国，每钦忠懿，思一言展，故因讲武，远征赴阙。
He was summoned to the capital to train troops, and Emperor Gaozu received him in the Huangxin Hall and admonished him, saying: Your filial piety is renowned in the family, and your reputation is spread throughout the country. I often admire your loyalty and virtue, and I wanted to have a good conversation with you. So I used the opportunity of the military training to summon you to the imperial court from afar.