有事鐘無豔，無事夏迎春 [－－钟无艳－无－－－－]

Jyutping jau5 si6 zung1 mou4 jim6 mou4 si6 haa6 jing4 ceon1
Pinyin yǒu shì zhōng wú yàn ， wú shì xià yíng chūn

Definitions (粵典–words.hk)
  1. 語句、俚語
    形容​人有​緊要​事​，​需要​幫​忙​嘅​時​候​就​揾​一​個​可以​幫​到​佢​嘅​人​，​但當​無​事​嘅​時​候​就​唔​記​咗​佢​；
    in good times, people forget those who helped them in bad times; literally: when something happens, call for Zhong Wuyan; when nothing is happening, call for Xia Yingchun (a reference to the ugly but clever wife and the beautiful imperial concubine of the Emperor Qi Xuan)
    • 你有事就揾我呢個鐘無豔，平日冇事就揾佢呢個夏迎春，我真係心淡。
      你有事就揾我呢个钟无艳，平日冇事就揾佢呢个夏迎春，我真系心淡。
      nei5 jau5 si6 zau6 wan2 ngo5 ni1 go3 zung1 mou4 jim6, ping4 jat6 mou5 si6 zau6 wan2 keoi5 ni1 go3 haa6 jing4 ceon1, ngo5 zan1 hai6 sam1 taam5.
      When you need help, you find me; but when you do not need any help, you find her (and forget me). I'm really disheartened.