《元史·列传·卷五十一》
成宗即位，桓上疏陈奏当时应办的政务，共二十一事：一曰祭祀天地；二曰亲祭太庙备办四季祭品；三曰选任首相；四曰朝见群臣，询问当今政治之得失；五曰令儒臣按时向皇帝讲解经文；六曰设立太子学及各府州学校，教养学生；七曰表彰那些为国操劳成绩卓著的人；八曰规定礼服样式，借以区别贵贱；九曰讲求宫廷仪礼；十曰确定官吏编制，裁减多余之人；十一曰开辟财源，增加国库收入；十二曰访求精通音乐的人来制定宗庙祭礼的雅乐；十三曰国子监不可隶于集贤院；十四曰通过考试选拔来增补六部、寺、监及府、州、县的官员；十五曰增加朝廷内外官吏的俸禄；十六曰禁止父子、兄弟、奴婢相互告发；十七曰规定婚姻财礼；十八曰禁止用官钱做生意；十九曰恢复杖刑，借以区别罪过之轻重；二十曰对中统以前的郡县官吏加以优待；二十一曰各地政治要从本地民俗出发。
成宗即位，桓疏上时务二十一事：一曰郊祀天地；二曰亲享太庙，备四时之祭；三曰先定首相；四曰朝见群臣，访问时政得失；五曰诏儒臣以时侍讲；六曰设太学及府州儒学，教养生徒；七曰行诰命以褒善叙劳；八曰异章服以别贵贱；九曰正礼仪以肃宫庭；十曰定官制以省内外冗员；十一曰讲究钱谷以裕国用；十二曰访求晓习音律者以协太常雅乐；十三曰国子监不可隶集贤院，宜正其名；十四曰试补六部寺监及府州司县吏；十五曰增内外官吏俸禄；十六曰禁父子骨肉、奴婢相告讦者；十七曰定婚姻聘财；十八曰罢行用官钱营什一之利；十九曰复笞杖以别轻重之罪；二十曰郡县吏自中统前仕宦者，宜加优异；二十一曰为治之道宜各从本俗。
When Chengzong ascended the throne, Huan presented a written memorial on governmental affairs, consisting of twenty-one items: 1) conducting sacrifices to heaven and earth; 2) personally conducting sacrifices in the imperial temple and preparing offerings to be made four times a year; 3) selecting a prime minister; 4) holding court and asking officials about the advantages and disadvantages of current policies; 5) ordering Confucian scholars to explain the classics to the emperor on a regular basis; 6) establishing an imperial academy and academies in various commanderies and prefectures to educate students; 7) rewarding those who had made outstanding contributions to the nation; 8) regulating the styles of formal dress to distinguish between the noble and the humble; 9) promoting court etiquette; 10) determining the number of officials and dismissing redundant personnel; 11) finding new sources of revenue to increase the national treasury; 12) seeking out musical experts to compose elegant music for temple sacrifices; 13) ensuring that the Imperial Academy was not subordinate to the Jixian Institute; 14) selecting officials for the Six Ministries, bureaus, and directorates, as well as for the commanderies, prefectures, and counties through examinations; 15) increasing the salaries of officials both inside and outside the imperial court; 16) prohibiting fathers, sons, brothers, and servants from accusing one another; 17) regulating marriage gifts; 18) prohibiting the use of official funds for business purposes; 19) restoring the use of the bamboo whip as a form of punishment to distinguish between minor and serious offenses; 20) granting preferential treatment to county officials who had served before the Zhongtong period; 21) ensuring that local governments took into account local customs when formulating policies.