ㄑㄧㄥㄍㄨㄢqīngguānㄋㄢˊnánㄉㄨㄢˋduànㄐㄧㄚˋˋjiāwùshì

清官难断家务事
  1. 家庭糾紛繁瑣複雜即使公正廉潔官吏難以論斷是非 俗話清官難斷家務事他們財務糾紛咱們還是插手」。

even an honest and upright official will have difficulty resolving a family dispute (proverb)​