《元史·列传·卷六》
太祖十九年九月，蒙古军攻克银川，斩首数万级，俘获人口、马驼、牛羊数十万，命都元帅蒙古不花领兵守其要害。
甲申秋九月，攻银州，克之，斩首数万级，获生口马驼牛羊数十万，俘监府塔海，命都元帅蒙古不华将兵守其要害而还。
In September of the 19th year of Emperor Taizu, the Mongolian army captured Yinchuan, beheaded tens of thousands of people, and captured hundreds of thousands of people, horses, camels, cattle, and sheep. He ordered the commander-in-chief, Mongolian General Buhua, to lead troops to guard its vital interests.