《资治通鉴·汉纪·汉纪四十二》
假如不然，匈奴就会因为得到了西域，而利用西域丰厚的贡物和众多的兵马，骚扰攻击汉朝的边境。这是为仇人增加财富，为横暴的敌国增强实力。
如其不然，则因西域租入之饶，兵马之众，以扰动缘边，是为富仇雠之财，增暴夷之势也。
If not, the Huns will use the abundant tributes and numerous soldiers of the Western Regions to harass and attack the border of the Han Dynasty because they have obtained the Western Regions. This is to increase wealth for the enemy, and to improve the strength of the brutal enemy country.