Дурак дом построил, а умный купил

Work is done by one person, but someone else enjoys the benefit. See Медведь пляшет, а поводырь деньги берет (M)

Cf: Asses fetch the oats and the horses eat them (Br.). Fools build houses and wise men buy them (Br.). Fools build houses for wise men to live in (Am.). Fools lade the water, and wise men catch the fish (Br.). Fools make feasts and wise men eat them (Am., Br.). One beats the bush, and another catches the birds (has the hare) (Br.). One man makes the chair, and another man sits in it (Br.). One /man/ sows and another reaps (Br.). One man works, and another reaps the benefits (Am.). What one man sows another man reaps (Am.)