《明史·列传·卷二百一十七》
番族首领牙兰说并不是想得罪明朝廷，之所以侵犯边境，是由于朝廷冤枉杀死写亦虎仙和失拜烟答两个人的缘故。
弘治元年躬至哈密城下，诱罕慎盟，执杀之，复据其城，而遣使入贡；称与罕慎缔姻，乞赐蟒服及九龙浑金膝襕诸物。
The non-Han tribe leader Yalan stated that he did not mean to offend the Ming court, and that he had invaded the border because the court had wrongfully killed Xierxian and Shibaikayanda.