Mbh 12.59.3j

All the ordinances of the science of chastisement, O king, (in their embodied forms) came to that best of men. The son of Vena then, with joined hands, said unto those great Rishis, 'I have attained an understanding that is very keen and that is observant of righteousness. Tell me in detail what I shall do with it. That useful task which you will be pleased to indicate, I shall accomplish without hesitation.' Thus addressed, the gods that were present there, as also the Rishis, said unto him. 'Do thou fearlessly accomplish all those tasks in which righteousness even resides. Disregarding what is dear and what not so, look upon all creatures with an equal eye. Cast off at a distance lust and wrath and covetousness and honour, and, always observing the dictates of righteousness, do thou punish with thy own hands the man, whoever he may be, that deviates from the path of duty. Do thou also swear that thou wouldst, in thought, word, and deed, always maintain the religion inculcated on earth by the Vedas. Do thou further swear that thou wouldst fearlessly maintain the duties laid down in the Vedas with the aid of the science of chastisement, and that thou wouldst never act with caprice. O puissant one, know that Brahmanas are exempt from chastisement, and pledge further that thou wouldst protect the world from an intermixture of castes.' Thus addressed, Vena's son replied unto the deities headed by the Rishis, saying, 'Those bulls among men, viz., the highly blessed Brahmanas, shall ever be worshipped by me.' Those utterers of Brahma then said unto him, 'Let it be so!' Then Sukra, that vast receptacle of Brahma, became his priest. The Valakhilyas became his counsellors, and the Saraswatas his companions. The great and illustrious Rishi Garga became his astrologer. This high declaration of the Srutis is current among men that Prithu is the eighth from Vishnu. A little before, the two persons named Suta and Magadha had come into existence.