The state of Yanqi焉耆國

The state of Yanqi lies eight thousand two hundred li west of Luoyang. Its land reaches Weili on the south and borders the Wusun on the north, and it is four hundred li square. On all four sides there are great mountains, and the roads are steep and narrow, so that if a hundred men hold them a thousand cannot pass. By their custom the men cut their hair, and the women wear short jackets and put on wide trousers. Their marriages are the same as in China. They love goods and profit and think nothing of cunning and deceit. The king has several tens of guards about him, and they are all haughty and keep no rite of high and low.

In the Taikang years of Emperor Wu their king Long An sent his son to serve at the Chinese court. An's wife was a daughter of Kuaihu (獪胡). She carried her child twelve months, and the child was born by cutting open her side; he was named Hui (會), and he was set up as heir. Hui was brave and outstanding from his youth. When An was gravely ill he said to Hui, "I was once put to shame by Baishan, the king of Qiuci, and I have not forgotten it in my heart. If you can wipe it away, then you are my son." When Hui ascended the throne he attacked Baishan and destroyed him, and so held that country, and he sent his own son Xi back to their home country to be king. Hui had courage and a gift for planning, and so he became overlord of the Western Hu (西胡), and east of the Congling range there was none who did not submit. But he trusted in his bravery and was rash, and once when he went out and slept away from home he was killed by Luoyun, a man of the state of Qiuci.

After that Zhang Jun sent Yang Xuan, the inspector of Shazhou, to lead a host and set the Western Regions in order, and Xuan made his subordinate general Zhang Zhi his vanguard, and wherever they went men bent like grass before the wind. When the army came up to that country, Xi held them off and fought at the city of Benlun and was beaten by Zhi. Zhi was then encamped at Tiemen, and when he was still more than ten li away, Xi again led his host and got ahead of him to hold the pass at the Zheliu valley. As Zhi was about to arrive, someone said, "Gaozu of Han shrank from Boren (柏人), and Cen Peng died at Pengwang (彭亡). Now this valley is named Zheliu (遮留), which is to block and to hold. May there not be an ambush?" Zhi rode out alone to test it, and an ambush did indeed break out. Zhi charged and beat them, and went on to take Weili, and Xi led his forty thousand followers and bared his shoulders and surrendered to Xuan. When Lü Guang struck at the Western Regions he surrendered again, to Guang, and when Guang usurped the throne Xi again sent his son to serve at his court.