秋毫無犯 [－－无－]

Jyutping cau1 hou4 mou4 faan6
Pinyin qiū háo wú fàn

Definitions (CC-CEDICT)
  1. (idiom) (of soldiers) highly disciplined, not committing the slightest offense against civilians
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    to not even commit the slightest violation
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）