《史记·七十列传·大宛列传》
第二年，攻打姑师，赵破奴和轻骑兵七百多人首先到达，俘虏了楼兰王，于是攻陷姑师。
其明年，击姑师，破奴与轻骑七百馀先至，虏楼兰王，遂破姑师。
The following year, he attacked Gushi, when Zhao POnu and over seven hundred light cavalry reached it first, capturing the king of Loulan, and thus Gushi was routed.