《资治通鉴·晋纪·晋纪四十》
西秦安东将军乞伏木弈干，进攻吐谷浑汗国可汗树洛干，在尧杆川大败他的弟弟阿柴，俘虏五千多人班师。
西秦安东将军木弈干击吐谷浑树洛干，破其弟阿柴于尧杆川，俘五千馀口而还。
Xi Qin's general of the East, Qifu Muyigan, attacked the Khan of the Tugu Hun Khanate, Shuloqian, and defeated his brother, Acha, at Yaogan River, capturing over 5,000 people.