小財唔出，大財唔入 [－财－－－－财－－]

Jyutping siu2 coi4 m4 ceot1 daai6 coi4 m4 jap6
Pinyin xiǎo cái wú chū ， dà cái wú rù

Definitions (粵典–words.hk)

語句
付出少少錢先有機會得到更多嘅回報，通常形容投資、賭博、進修
in order to get a bigger return, one has to invest something first, usually used in describing investment, gambling, learning activities

Jyutping siu2 coi4 m4 ceot1 daai6 coi4 m4 jap6
Pinyin xiǎo cái n2 chū , dà cái n2 rù

Definitions (CC-CANTO)