師出有名 [师－－－]

Jyutping si1 ceot1 jau5 ming4
Pinyin shī chū yǒu míng

Definitions (CC-CEDICT)
  1. lit. to have sufficient reason to send troops (idiom)
  2. to do something with good reason
  3. to have just cause
Definitions (Wiktionary)
  1. phrase, idiomatic
    to do something for a good and proper reason
Examples (Wiktionary)
  1. Mandarin
    师出有名
    師出有名
    shī chū yǒu míng
    • to do something for a good and proper reason