חוֹשֵׂ֣ךְ שִׁ֭בְטוֹ שׂוֹנֵ֣א בְנ֑וֹ וְ֝אֹהֲב֗וֹ שִֽׁחֲר֥וֹ מוּסָֽר׃
He that spareth his rod hateth his son; But he that loveth him chasteneth him betimes.
Rashi on Proverbs
He who holds back his rod His end will be that he will hate his son because he will see him getting into mischief.
Rashi on Proverbs
disciplines him early He always chastises him in the morning.