O son of Mitrā, kindly describe how the planets are situated above the earth as well as underneath it, and also please mention their measurement as well as that of the earthly planets.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
एतेषामपि वंशांश्च वंशानुचरितानि च । उपर्यधश्च ये लोका भूमेर्मित्रात्मजासते
eteṣāmapi vaṃśāṃśca vaṃśānucaritāni ca | uparyadhaśca ye lokā bhūmermitrātmajāsate
SB 3.7.26