《汉书·传·元后传》
河平年间以来，我连年生病，多次在家养病，不理政务，徒受秩禄，这是我应当引退的第三个原因。
河平以来，臣久病连年，数出在外，旷职素餐，此臣三当退也。
Since the Heping era began, I have gotten sick year after year, often resting at home to recuperate, and not attending to government business, only receiving my salary, this is the third reason why I should withdraw.