《资治通鉴·汉纪·汉纪四十九》
郡太守、州刺史一个月内往往调动数次，应该按照正常的升进和黜退制度，考核他们能否胜任，即令不能任满九年，至少也应任满三年。
又，郡守、刺史一月数迁，宜依黜陟以章能否，纵不九载，可满三岁。
County prefects and state provincial governors often rotated posts within a month, They should have been appointed and dismissed according to normal promotion and demotion system, even if they couldn't have served their full nine years, they should've served at least three.