Mbh 12.141.27

"'Bhishma continued, "The Chandala, having said these words unto Kusika's son, became silent. Viswamitra then, of cultivated understanding, took away that haunch of dog's meat. The great ascetic having possessed himself of that piece of dog's meat for saving his life, took it away into the woods and wished with his wife to eat it. He resolved that having first gratified the deities according to due rites, he should then eat that haunch of dog's meat at his pleasure. Igniting a fire according to the Brahma rites, the ascetic, agreeably to those rites that go by the name of Aindragneya, began himself to cook that meat into sacrificial Charu. He then, O Bharata, began the ceremonies in honour of the gods and the Pitris, by dividing that Charu into as many portions as were necessary, according to the injunctions of the scriptures, and by invoking the gods with Indra at their head (for accepting their shares). Meanwhile, the chief of the celestials began to pour copiously. Reviving all creatures by those showers, he caused plants and herbs to grow once more. Viswamitra, however, having completed the rites in honour of the gods and the Pitris and having gratified them duly, himself ate that meat. Burning all his sins afterwards by his penances, the sage, after a long time, acquired the most wonderful (ascetic) success. Even thus, when the end in view is the preservation of life itself, should a high-souled person possessed of learning and acquainted with means rescue his own cheerless self, when fallen into distress, by all means in his power. By having recourse to such understanding one should always preserve one's life. A person, if alive, can win religious merit and enjoy happiness and prosperity. For this reason, O son of Kunti, a person of cleansed soul and possessed of learning should live and act in this world, relying upon his own intelligence in discriminating between righteousness and its reverse."'"