《元史·列传·卷五十》
定宗皇后二年，太保刘秉忠把马亨推荐与世祖，世祖召见，甚是器重。
庚戌，太保刘秉忠荐亨于世祖，召见潜邸，甚器之。
In the second year of the reign of Empress Qinzong of Dingzong, Taibo Liu Bingzhong recommended Ma Heng to Shizu. Shizu summoned him to court and was impressed by him.