One verse

Srimad Bhagavatam 9.20.22

9.20.22

रेतोधा: पुत्रो नयति नरदेव यमक्षयात् । त्वं चास्य धाता गर्भस्य सत्यमाह शकुन्तला ॥ २२ ॥

reto-dhah putro nayati naradeva yama-ksayat tvam casya dhata garbhasya satyam aha sakuntala

retah-dhah
a person who discharges semen
putrah
the son
nayati
saves
nara-deva
O King (Maharaja Dusmanta)
yama-ksayat
from punishment by Yamaraja, or from the custody of Yamaraja
tvam
your good self
ca
and
asya
of this child
dhata
the creator
garbhasya
of the embryo
satyam
truthfully
aha
said
sakuntala
your wife, Sakuntala.

O King Dusmanta, he who discharges semen is the actual father, and his son saves him from the custody of Yamaraja. You are the actual procreator of this child. Indeed, Sakuntala is speaking the truth.