《北史·列传·卷三十八》
当时的刺史皇甫集，是灵太后的大舅，常倚仗着外戚的身份，干些违法乱纪的事情，费穆面色严肃地向他进谏，他也害怕费穆。
时刺史皇甫集，灵太后之元舅，恃外戚之亲，多为非法。穆正色匡谏，集亦惮之。
At that time, the governor Huangfuji was the elder uncle of Emperor Ling and often relied on his identity as a foreign relative to do illegal things. Fei Mu advised him with a serious face, and he was also afraid of Fei Mu.