《资治通鉴·齐纪·齐纪十》
青州人治中房长瑜过去曾在张冲幕府中任过吏员，他对张孜说： 令尊前使君赤胆忠心，气贯长虹，郎君您唯一应当做到的就是坐镇坚守，使该城不要丢失，以不负已故令尊大人的重托。
张冲故吏青州治中房长瑜谓孜曰： 前使君忠贯昊天，郎君但当坐守画一荷析薪，若天运不与，当幅巾待命，下从使君。
Fang Changyu, a man from Qingzhou once served as a staff in Zhang Chong's commandery. He told Zhang Zi, "Your honorable father's former lord was loyal and upright and full of confidence and courage. Sir, you should stay and defend the city to avoid losing it in order to live up to the entrustment of your honorable father."