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Jyutping bat1 daa2 bat1 sing4 soeng1 sik1
Pinyin bù dǎ bù chéng xiāng shì

Definitions (Wiktionary)
  1. proverb
    Friends are often made after a fight; from an exchange of blows friendship grows; no acquaintance is made without a fight; no discord, no concord; out of blows friendship grows.

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Jyutping bat1 daa2 bat1 sing4 soeng1 sik1
Pinyin bù dǎ bù chéng xiāng shí

Definitions (CC-CEDICT)
  1. don't fight, won't make friends (idiom); an exchange of blows may lead to friendship
Definitions (Wiktionary)
  1. proverb
    Friends are often made after a fight; from an exchange of blows friendship grows; no acquaintance is made without a fight; no discord, no concord; out of blows friendship grows.