Devibhagavatapurana 4.2.30

4.2.30

kṣutṛṣṇāvedanāśaktaḥ paratantro'tikātaraḥ |
kṣudhite rudite bāle mātā cintāturā tadā ||

When the child becomes hungry and cries, the mother becomes anxious. When the child is afflicted with diseases and cries, the mother then knows and administers medicines.