《资治通鉴·梁纪·梁纪六》
太和年间，仆射李冲掌权，凉州的当地人全都免除服役，而平城的那些高门大姓，却仍然要去防守边关，如果不是得罪了当权者，谁也不愿意加入其列。
太和中，仆射李冲用事，凉州土人悉免厮役；帝乡旧门，仍防边戍，自非得罪当世，莫肯与之为伍。
During Taihe period, when the attendant minister Li Chong was in power, all the local residents of Liangzhou were exempted from military service, while the high-ranking aristocratic families in Pingcheng still had to serve on the border. Unless they had offended the authorities in power, none of them were willing to join its ranks.