One verse

Srimad Bhagavatam 10.45.22

10.45.22

स पिता सा च जननी यौ पुष्णीतां स्वपुत्रवत् । शिशून् बन्धुभिरुत्सृष्टानकल्पै: पोषरक्षणे ॥ २२ ॥

sa pitā sā ca jananī yau puṣṇītāṁ sva-putra-vat śiśūn bandhubhir utsṛṣṭān akalpaiḥ poṣa-rakṣaṇe

saḥ
he
pitā
father
sā
she
ca
and
jananī
mother
yau
who
puṣṇītām
nourish
sva
their own
putra
sons
vat
like
śiśūn
children
bandhubhiḥ
by their family
utsṛṣṭān
abandoned
akalpaiḥ
who are unable
poṣa
to maintain
rakṣaṇe
and protect

They are the real father and mother who care for, as they would their own sons, children abandoned by relatives unable to maintain and protect them.