是骡子是马,牵出来遛遛 (是騾子是馬,牽出來遛遛) shì luózi shì mǎ, qiān chūlái liù liù

shì luózi shì mǎ, qiān chūlái liù liù phrase to see whether it's a mule or a horse, take it out for a walk / the proof of the pudding is in the eating
Domain: Proverb 谚语
Notes: (CC-CEDICT '是騾子是馬,牽出來遛遛')