One verse

Srimad Bhagavatam 3.20.15

3.20.15

सोऽशयिष्टाब्धिसलिले आण्डकोशो निरात्मक: । साग्रं वै वर्षसाहस्रमन्ववात्सीत्तमीश्वर: ॥ १५ ॥

so ’sayistabdhi-salile andakoso niratmakah sagram vai varsa-sahasram anvavatsit tam isvarah

sah
it
asayista
lay
abdhi-salile
on the waters of the Causal Ocean
anda-kosah
egg
niratmakah
in an unconscious state
sagram
a little more than
vai
in fact
varsa-sahasram
a thousand years
anvavatsit
became situated
tam
in the egg
isvarah
the Lord.

For over one thousand years the shiny egg lay on the waters of the Causal Ocean in the lifeless state. Then the Lord entered it as Garbhodakasayi Visnu.