One verse

Srimad Bhagavatam 3.7.26

3.7.26

उपर्यधश्च ये लोका भूमेर्मित्रात्मजासते । तेषां संस्थां प्रमाणं च भूर्लोकस्य च वर्णय ॥ २६ ॥

upary adhas ca ye loka bhumer mitratmajasate tesam samstham pramanam ca bhur-lokasya ca varnaya

upari
on the head
adhah
underneath
ca
also
ye
which
lokah
planes
bhumeh
of the earth
mitra-atmaja
O son of Mitra (Maitreya Muni)
asate
do exist
tesam
their
samstham
situation
pramanam ca
also their measurement
bhuh-lokasya
of the earthly planes
ca
also
varnaya
please describe.

O son of Mitra, kindly describe how the planes are situated above the earth as well as underneath it, and also please mention their measurement as well as that of the earthly planes.