《汉书·传·张骞李广利传》
少数民族依恋故土，又贪心汉朝的财物，如果在此时多多地送些财物给乌孙，招引他们到束边来居住在原来的土地上，汉朝送公主给乌孙王作夫人，双方结为兄弟关系，根据以上对形势的分析，乌孙一定会听从我们的建议，那么造就等于切断了匈奴的右臂。
蛮夷恋故地，又贪汉物，诚以此时厚赂乌孙，招以东居故地，汉遣公主为夫人，结昆弟，其势宜听，则是断匈奴右臂也。
The ethnic minorities miss their homeland and covet the wealth of the Han Dynasty. If we give more wealth to Wusun at this time, attract them to move to the eastern border and live in their original lands, and the Han Dynasty gives a princess to King Wu of Wusun as his wife, and the two sides establish a brotherly relationship, based on the above analysis of the situation, Wusun will definitely listen to our advice, so it will be tantamount to cutting off the right arm of the Xiongnu. 