塞翁失馬安知非福 [－－－马－－－－]

Jyutping coi3 jung1 sat1 maa5 on1 zi1 fei1 fuk1
Pinyin sài wēng shī mǎ ān zhī fēi fú

Definitions (CC-CEDICT)
  1. the old man lost his mare, but it all turned out for the best (idiom); fig. a blessing in disguise
  2. it's an ill wind that blows nobody any good
  3. also written 塞翁失馬焉知非福|塞翁失马焉知非福