《北史·列传·卷一》
郑俨在宫廷中淫乱，权势遍及全国。李神轨、徐纥都被看成心腹侍从，一二年内，担任了宫廷中最显耀的官职。
郑俨污乱宫掖，势倾海内；李神轨、徐纥并见亲侍，一二年中，位总禁要。
Zheng Wei was promiscuous in the palace and his power spread throughout the country. Li Shengu and Xu He were both regarded as his close relatives and within a year or two they assumed the most prominent positions in the palace.