《明史·列传·卷一百七十七》
十五年，太祖渡江，云先渡，攻克太平，因其忠勇而留为太祖侍卫。
乙未，太祖渡江，云先济。既克太平，以忠勇宿卫左右。
In the fifteenth year, the first emperor crossed the river. Yun crossed first, captured Taiping, and was assigned to protect the first emperor because of his loyalty and bravery.