One verse

Srimad Bhagavatam 2.1.26

2.1.26

पातालमेतस्य हि पादमूलं पठन्ति पार्ष्णिप्रपदे रसातलम् । महातलं विश्वसृजोऽथ गुल्फौ तलातलं वै पुरुषस्य जङ्घे ॥ २६ ॥

patalam etasya hi pada-mulam pathanti parsni-prapade rasatalam mahatalam visva-srjo ’tha gulphau talatalam vai purusasya janghe

patalam
the planets at the bottom of the universe
etasya
of His
hi
exactly
pada-mulam
soles of the feet
pathanti
they study it
parsni
the heels
prapade
the toes
rasatalam
the planets named Rasatala
mahatalam
the planets named Mahatala
visva-srjah
of the creator of the universe
atha
thus
gulphau
the ankles
talatalam
the planets named Talatala
vai
as they are
purusasya
of the gigantic person
janghe
the shanks

Persons who have realized it have studied that the planes known as Patala constitute the bottoms of the feet of the universal Lord, and the heels and the toes are the Rasatala planes. The ankles are the Mahatala planes, and His shanks constitute the Talatala planes.