不問就聽不到假話 [－问－听－－－话]

Jyutping bat1 man6 zau6 ting1 bat1 dou3 gaa2 waa6
Pinyin bù wèn jiù tīng bù dào jiǎ huà

Definitions (CC-CEDICT)
  1. Don't ask and you won't be told any lies. (idiom)