もちはもちや・モチはモチや

餅は餅屋

表記・読み：もちはもち屋・モチはモチ屋・もちはもちや・モチはモチや

1. 1

   every man knows his own business best; one should go to specialists for the best results; for rice cakes, (go to) the rice cake shop

   expressions (phrases, clauses, etc.)proverb