《元史·列传·卷二十五》
十年，斡罗思、失班等逃往察八儿之地，武宗命伯颜追击，斡罗思等降。
十年，斡罗思、失班等逃奔察八儿之地，武宗命伯颜追降之。
In the tenth year, when Ororos, Shiban and others fled to Chabar’s land, Emperor Wuzong ordered Boyan to pursue them, and Ororos and others surrendered.