Mbh 1.63.19a

“Then Bhishma, of great energy and fame and of immeasurable splendour, and sprung from the component parts of the Vasus, was born in the womb of Ganga through king Santanu. And there was a Rishi of the name of Animandavya of great fame. And he was conversant with the interpretations of the Vedas, was illustrious, gifted with great energy, and of great reputation. And, accused of theft, though innocent, the old Rishi was impaled. He thereupon summoned Dharma and told him these words, ‘In my childhood I had pierced a little fly on a blade of grass, O Dharma! I recollect that one sin: but I cannot call to mind any other. I have, however, since practised penances a thousandfold. Hath not that one sin been conquered by this my asceticism? And because the killing of a Brahmana is more heinous than that of any other living thing, therefore, hast thou, O Dharma, been sinful. Thou shalt, therefore, be born on earth in the Sudra order.’ And for that curse Dharma was born a Sudra in the form of the learned Vidura of pure body who was perfectly sinless. And the Suta was born of Kunti in her maidenhood through Surya. And he came out of his mother’s womb with a natural coat of mail and face brightened by ear-rings. And Vishnu himself, of world-wide fame, and worshipped of all the worlds, was born of Devaki through Vasudeva, for the benefit of the three worlds. He is without birth and death, of radiant splendour, the Creator of the universe and the Lord of all!