割鸡焉用牛刀 (割雞焉用牛刀) gē jī yān yòng niú dāo

gē jī yān yòng niú dāo phrase why use a pole-ax to slaughter a chicken?; to waste effort on a trifling matter
Domain: Proverb 谚语
Notes: Also written 杀鸡焉用牛刀 (CC-CEDICT '割雞焉用牛刀')