事不過三 [－－过－]

Jyutping si6 bat1 gwo3 saam1
Pinyin shì bù guò sān

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    There will not be a fourth time. / One should not make the same action or mistake more than three times.

事不過三 [－－过－]

Jyutping
Pinyin shì bù guò sān

Definitions (CC-CEDICT)
  1. a thing should not be attempted more than three times (idiom)
  2. don't repeat the same mistake again and again
  3. bad things don't happen more than three times