《元史·本纪·卷二十七》
二十八日，任命铁失为御史大夫，佩戴金符，担任忠翊侍卫亲军都指挥使。
辛丑，以铁失为御史大夫，佩金符，领忠翊侍卫亲军都指挥使。
28th, appointed Tieshi as Censor-in-Chief, awarded a golden talisman and appointed as Commander-in-Chief of the Loyal and Gallant Imperial Guards.