《后汉书·列传·李王邓来列传》
建武十三年，帝嘉奖来歙忠节，又封来歙弟来由为宜西侯。
十三年，帝嘉歙忠节，复封歙弟由为宜西侯。
In the 13th year of Jianwu, the emperor rewarded Lai She for his loyalty and devotion, and also enfeoffed Lai Bao's younger brother, Lai You, as the Marquis of Yixi.