《资治通鉴·汉纪·汉纪四十九》
还有，不久之前，陛下把 宣陵孝子 一律任命他们为太子舍人。我曾经听说过，汉文帝规定，服丧只需三十六日，即令是继承帝位的皇帝，又是父子至亲，以及身受重恩的三公、九卿等文武大臣，都要克制自己的感情，遵守这项制度，不得超越。
又，前一切以宣陵孝子为太子舍人，臣闻孝文皇帝制丧服三十六日，虽继体之君，父子至亲，公卿列臣受恩之重，皆屈情从制，不敢逾越。
Again, a short time ago, your Majesty appointed the filial sons of the Hsüan-ling as pages of the Heir Apparent. I have heard that the Emperor Wen required mourning to be worn for thirty-six days only, in the case of an emperor who succeeded to the throne, and even in that of a father; and that for three grand Ministers and nine high Ministers, and for other dignitaries, civil or military, who had received great favors, such restraint was observed.