One verse

Srimad Bhagavatam 3.11.36

3.11.36

तस्यैव चान्ते कल्पोऽभूद् यं पाद्ममभिचक्षते । यद्धरेर्नाभिसरस आसील्लोकसरोरुहम् ॥ ३६ ॥

tasyaiva cante kalpo ’bhud yam padmam abhicaksate yad dharer nabhi-sarasa asil loka-saroruham

tasya
of the Brahma-kalpa
eva
certainly
ca
also
ante
at the end of
kalpah
millennium
abhut
came into existence
yam
which
padmam
Padma
abhicaksate
is called
yat
in which
hareh
of the Personality of Godhead
nabhi
in the navel
sarasah
from the reservoir of water
asit
there was
loka
of the universe
saroruham
lotus.

The millennium which followed the first Brahma millennium is known as the Padma-kalpa because in that millennium the universal lotus flower grew out of the navel reservoir of water of the Personality of Godhead, Hari.