《资治通鉴·汉纪·汉纪四十六》
朝廷采纳皇甫规的建议，任命张奂接替皇甫规担任度辽将军，任命皇甫规为使匈奴中郎将。
朝廷从之。以奂代规为度辽将军，以规为使匈奴中郎将。
The Imperial Court adopted Huangfugui’s suggestion and appointed Zhang Huan to replace Huangfugui as General Assisting Liaodong, and appointed Huangfugui as Lieutenant General to the Xiongnu.