One verse

Srimad Bhagavatam 4.13.35

4.13.35

इति व्यवसिता विप्रास्तस्य राज्ञ: प्रजातये । पुरोडाशं निरवपन् शिपिविष्टाय विष्णवे ॥ ३५ ॥

iti vyavasita vipras tasya rajnah prajataye purodasam niravapan sipi-vistaya visnave

iti
thus
vyavasitah
having decided
viprah
the brahmanas
tasya
his
rajnah
of the king
prajataye
for the purpose of getting a son
purodasam
the paraphernalia of sacrifice
niravapan
offered
sipi-vistaya
to the Lord, who is situated in the sacrificial fire
visnave
to Lord Visnu.

Thus for the sake of a son for King Anga, they decided to offer oblations to Lord Visnu, who is situated in the hearts of all living entities.