Matsya Purana 248.73

248.73

chāyā patnī sahāyo vai maṇiśrṛṅga ivocchritaḥ.
rasātalatale magnāṃ rasātalatalaṅgatām .. 248.74 ..

Then the Lord manifested Himself as a boar that He might enjoy the playing in waters That mighty Lord, incomprehensible by mind and speech of all the beings that Brahma extended Himself to hundred yojanas in length and twice that in height Shining and thundering like the blue clouds looking like a mountain, with white sharp tusks, full of lustre like the sun, lightning and fire, with a high waist, with such a formidable form adorable by all, He sank down into the Rasâtala to lift the world The Lord in that mighty manifestation, having the Vedas for His feet, the sacrificial post for His tusks, the sacrificial pit for his mouth, the fire for His tongue the Kuśa grass for His hair, Brahmâ for His head, night and day for His eyes, Vedâṅgas for His ears, sacrificial clarified butter for His nose, the sacrificial ladel for his snout, the chant of the Sâmavedâ for His breast, truth, virtue and deeds for His courage and effort, purificatory rights for His claws, sacrificial beings for His knees, all the sacrificial emblems as the seed, medicines for the results, the sacrificial altar for His inner self, sacrifices for His bones, soma for His blood, the Vedas for His shoulders, Sâkalya for His aroma, conjoint with the divisions of havya and kavya, the sacrificial fees for His heart, the Vedas as His passages, Upâvarmas for His lips Pravargyas for his ornaments, with mysterious Upaniṣadas for His seat, the protector of His shadow like better half, majestic like the mountain, He raised up the earth on His tusk from the Rasâtala, and located it in its proper place In other words, He let the Earth drop that was sticking to His tusk, though holding Her mentally after which She felt blessed and made Her obeisance to the Lord Thus Varâha came to the rescue of the Earth for the welfare of all, and then wished to make partitions on Her.—64-78