《资治通鉴·唐纪·唐纪五十七》
这一年，右补阙杨汝士和礼部侍郎钱徽二人主持进士考试。西川节度使段文昌、翰林学士李绅分别给钱徽写信，推荐自己所亲近的考生。等到放榜后，文昌和李绅所推荐的考生都落选了，中榜的进士当中：郑朗中郑覃的弟弟；裴撰是裴度的儿子；苏巢是李宗闵的女婿；杨殷士是杨汝士的弟弟。
右补阙杨汝士与礼部侍郎钱徽掌贡举，西川节度使段文昌、翰林学士李绅各以书属所善进士于徽；及榜出，文昌、绅所属皆不预焉，及第者，郑朗，覃之弟；裴譔，度之子；苏巢，宗闵之婿；杨殷士，汝士之弟也。
In the same year, Yang Rushi(the right adviser) and Qian Hui(the assistant minister of Ministry of Rites) presided over the imperial examination. The military governor of Xichuan Duan Wenchang and Academician Li Shen wrote recommendation letters to Qian Hui to promote candidates that were close to them. After the results were announced, the candidates recommended by Duan and Li failed the exam. Among the candidates that passed the exam were Zheng Langzhong Zheng Tan's younger brother, Pei Du's son Pei Juan, and Li Zong Min's son-in-law, Su Chao, as well as Yang Rushi's younger brother, Yang Yinshi.