Proverbs 26:3 in the World English Bible
A whip is for the horse, a bridle for the donkey, and a rod for the back of fools!
Context
2 As the bird by wandering, as the swallow by flying, so the curse causeless shall not come.
3 A whip for the horse, a bridle for the ass, and a rod for the fool’s back.
4 Answer not a fool according to his folly, lest thou also be like unto him.