Mbh 13.115.2a

"'Bhishma said, "Listen to me, O scion of Kuru's race, what the merit is that attaches to abstention from meat. Listen to me as I declare to thee what the excellent ordinances, in truth, are on this head. Those high-souled persons who desire beauty, faultlessness of limbs, long life, understanding, mental and physical strength, and memory, should abstain from acts of injury. On this topic, O scion of Kuru's race, innumerable discourses took place between the Rishis. Listen, O Yudhishthira, what their opinion was. The merit acquired by that person, O Yudhishthira, who, with the steadiness of a vow, adores the deities every month in horse-sacrifices, is equal to his who discards honey and meat. The seven celestial Rishis, the Valakhilyas, and those Rishis who drink the rays of the sun, endued with great wisdom, applaud abstention from meat. The Self-born Manu has said that that man who does not eat meat, or who does not slay living creatures, or who does not cause them to be slain, is a friend of all creatures. Such a man is incapable of being oppressed by any creature. He enjoys the confidence of all living beings. He always enjoys, besides, the approbation and commendation of the righteous. The righteous-souled Narada has said that that man who wishes to increase his own flesh by eating the flesh of other creatures, meets with calamity. Vrihaspati has said that that man who abstains from honey and meat acquires the merit of gifts and sacrifices and penances. In my estimation, these two persons are equal, viz., he who adores the deities every month in a horse-sacrifice for a space of hundred years and he who abstains from honey and meat. In consequence of abstention from meat one comes to be regarded as one who always adores the deities in sacrifices, or as one who always makes gifts to others, or as one who always undergoes the severest austerities.