Mbh 12.336.4c

They composed that treatise after having worshipped with penances the puissant and illustrious Narayana called also Hari, for a thousand celestial years, in company with many other Rishis. Gratified with their penances and worship, Narayana commanded the goddess of speech, viz. Saraswati, to enter into the person of those Rishis. The goddess, for the good of the worlds did what she was ordered. In consequence of the entrance of the goddess of speech into their persons, those Rishis, well conversant with penances, succeeded in composing that foremost of treatises in respect of vocables, import, and reason.[1797] Having composed that treatise sanctified with the syllable Om, the Rishis first of all read it to Narayana who became highly pleased with what he heard. The foremost of all Beings then addressed those Rishis in an incorporeal voice and said,--'Excellent is this treatise that ye have composed consisting of a hundred thousand verses. The duties and observances of all the worlds will flow from this your work! In complete accordance with the four Vedas, viz., the Yajushes, the Samans, and the Atharvans of Angiras, the treatise of yours will be an authority in all the worlds in respect of both Pravritti and Nivritti.[1798] Agreeably to the authority of the scriptures I have created Brahman from the attribute of Grace, Rudra from my Wrath, and yourselves, Ye Brahmanas, as representing the Pravriti-elements (of Mahat, Ahankara, etc.), Surya, and Chandramas, Wind, and Earth, and Water and Fire, all the stars and planets and constellations, all else that is called by the name of creatures, and utterers of Brahma (or the Vedas), they all live and act in their respective spheres and are all respected as authorities. Even this treatise that ye have composed shall be regarded by all persons in the same light, viz., as a work of the highest authority. This is my command.