http://www.sacred-texts.com/hin/mbs/mbs12337.htm

[vaiṣampāyana]
jajñe bahujñaṃ param aty udāraṃ; yaṃ dvīpamadhye sutam ātmavantam
parāśarād gandhavatī maharṣiṃ; tasmai namo 'jñānatamo nudāya
4 pitāmahād yaṃ pravadanti ṣaṣṭhaṃ; maharṣim ārṣeya vibhūti yuktam
nārāyaṇasyāṃśajam ekaputraṃ; dvaipāyanaṃ veda mahānidhānam
5 tam ādi kāleṣu mahāvibhūtir; nārāyaṇo brahma mahānidhānam
sasarja putrārtham udāratejā; vyāsaṃ mahātmānam ajaḥ purāṇaḥ

http://www.sacred-texts.com/hin/m12/m12c049.htm

Vaisampayana said, "I bow unto that great Rishi who is the dispeller of darkness, and whom Satyavati bore to Parasara in the midst of an island, who is possessed of great knowledge and who is endued with great liberality of soul. The learned say that he is the origin of the Grandsire Brahma; that he is the sixth form of Narayana; that he is the foremost of Rishis; that he is endued with the puissance of Yoga; that as the only son of his parents he is an incarnate(wrong word used here, avatar is the right word) portion of Narayana; and that, born under extraordinary circumstances on an Island, he is the inexhaustible receptacle of the Vedas. In the Krita age, Narayana of great puissance and mighty energy, created him as his son. Verily, the high-souled Vyasa is unborn and ancient and is the inexhaustible receptacle of the Vedas!"