Vyasa

  Matsya Purana (53.8-9)wherein the Lord says –

kalenagrahanam matva puranasya dvijottamah
vyasa-rupam aham krtva samharami yuge yuge

"O best of the brahmanas, understanding that the Purana would gradually become forgotten, in every yuga I appear in the form of Vyasa and condense it."

In the next sloka of that Purana, the Lord continues –

catur-laksa-pramanena dvapare dvapare sada
tad astadasadha krtva bhur-loke’smin prabhasyate

adyapyamartya-loke tu sata-koti-pravistaram
tad artho’tra catur-laksah sanksepena nivesitah

"The Purana contains four-hundred-thousand verses which is divided into eighteen parts. These are passed on via oral tradition every Dvapara-yuga on the earth-planet. Even today the original Purana which consists of one-billion verses exists in the heavenly planets. The essential meaning of that Purana is contained in the smaller version of four-hundred-thousand verses."

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