《元史·列传·卷三十三》
经过这样一番整顿，贪暴之风稍稍收敛。燕京地带盗贼横行，楚材奉皇太子睿宗拖雷之命去治理，访察得知盗贼都是蒙古军留后官吏的子弟和亲属，尽把他们逮捕下狱，不准说情，斩杀十六人，燕京人民始得安宁。
其家赂中使，将缓之，楚材示以祸福，中使惧，从其言，狱具，戮十六人于市，燕民始安。
After this order was issued, the mood of unbridled rapacity was somewhat dampened. Robberies were rampant in the Yanjing area. Chu Cai, following orders from Taizu's designated heir, Prince Rui (Dragom Khan Tolui), investigated and learned that the most active bandits were the sons and relatives of military officials. He immediately had them arrested and imprisoned, refused to allow any pleas on their behalf, and executed sixteen of them. Then the people of Yanjing were finally able to live in peace.