spare the rod and spoil the child
Definition:  if one does not discipline or punish a child when the child does something wrong, the child will not learn what is right
Usage:  my husband got angry when I scolded our daughter for bringing boys into our house, now she is pregnant and has dropped out of school; now he will understand the meaning of spare the rod and spoil the child

SEPEDI
Translation:  boloka thupa gomme o senye ngwana
Proverb: fihla thupa, o senye ngwana

XITSONGA
Translation:  loko u nga tirhisi nhonga, u onha n’wana
Proverb: n’wana a nga tsoniwi nkhavi

TSHIVENḒA
Translation:  dzima tshibonda u leme ṅwana
Proverb: ṅwana ha dziṅwi tsole