Lankavatara Sutra
http://lirs.ru/do/lanka_eng/lanka-chapter-4.htm#chap8
The Blessed One said this to him: For innumerable reasons, Mahāmati, the Bodhisattva, whose nature is compassion, is not to eat any meat; I will explain them: Mahāmati, in this long course of transmigration here, there is not one living being that, having assumed the form of a living being, has not been your mother, or father, or brother, or sister, or son, or daughter, or the one or the other, in various degrees of kinship; and when acquiring another form of life may live as a beast, as a domestic animal, as a bird, or as a womb-born, or as something standing in some relationship to you; [this being so] how can the Bodhisattva-Mahāsattva who desires to approach all living beings as if they were himself and to practise the Buddha-truths, eat the flesh of any living being that is of the same nature as himself? Even, Mahāmati, the Rakshasa, listening to the Tathagata's discourse on the highest essence of the Dharma, attained the notion of protecting [Buddhism], and, feeling pity, (246) refrains from eating flesh; how much more those who love the Dharma! Thus, Mahāmati, wherever there is the evolution of living beings, let people cherish the thought of kinship with them, and, thinking that all beings are [to be loved as if they were] an only child, let them refrain from eating meat. So with Bodhisattvas whose nature is compassion, [the eating of] meat is to be avoided by him. Even in exceptional cases, it is not [compassionate] of a Bodhisattva of good standing to eat meat. The flesh of a dog, an ass, a buffalo, a horse, a bull, or man, or any other [being], Mahāmati, that is not generally eaten by people, is sold on the roadside as mutton for the sake of money; and therefore, Mahāmati, the Bodhisattva should not eat meat.
Shurangama Sutra
http://online.sfsu.edu/rone/Buddhism/Sh ... uotes.html
http://www.cttbusa.org/shurangama/shurangama2_b.asp
4p 38 "Purna, thought and love become bound together so that people love each other and cannot bear to be apart. As a
result, ceaseless successive births of parents, children, and grandchildren occur in this world. And the basis for all that is
desire and greed.
4p 38-39 "Greed and emotional love feed on one another until the greed becomes insatiable. The result of that in this world
is the tendency of egg-born, womb-born, moisture-born, and transformation-born beings to devour one another to the extent
that their strength permits. The basis for all that is killing and greed.
4p 40 "Suppose a person eats a sheep. The sheep dies and becomes a person; the person dies and becomes a sheep, The
same applies in all rebirths among the ten categories. Through death after death and birth after birth, they eat each other. The
evil karma one is born with continues to the bounds of the future. The basis for all that is stealing and greed.
4p 42 "‘You owe me a life; I must repay my debt to you.’ Due to such causes and conditions we pass through hundreds of
thousands of eons in sustained cycle of birth and death.
6p 20 "After my cessation, in the Dharma-ending Age, these hordes of ghosts and spirits will abound, spreading like
wildfire as they argue that eating meat will bring one to the Bodhi Way.
6p 20-21 "Ananda, I permit the Bhikshus to eat five kinds of pure meat. This meat is actually a transformation brought into
being by my spiritual powers. It basically has no life-force. Those of you Brahmans who live in a climate so hot and humid, and on such sandy and rocky land, that vegetables will not grow; therefore, I have had to assist you with spiritual powers and compassion. Because of this magnanimous kindness and compassion, this so-called meat suits your taste. After my
extinction, how can those who eat the flesh of beings be called the disciples of Shakya?
6p 22 "You should know that these people who eat meat may gain some awareness and may seem to be in samadhi, but they
are all great rakshasas. When their retribution ends, they are bound to sink into the bitter sea of birth and death. They are not
disciples of the Buddha. Such people as these kill and eat one another in a never-ending cycle. How can such people
transcend the Triple Realm?
6p 23 "When you teach people of the world to cultivate samadhi, they must also cut off killing. This is the second clear and
decisive instruction on purity given by the Thus Come Ones, the Buddhas of the Past, World Honored Ones.
Siksha-Samuccaya
http://online.sfsu.edu/rone/Buddhism/Bu ... nomeat.htm
Just so must he support himself by the physic that is always useful: but even then not with fish or flesh, because it is forbidden in the Lankâvatara Sutra. For thus it is said: "No flesh must be eaten; so I say to the pitiful Bodhisattva . . . . Because of kinship, because of its wrong, because it is produced by semen and uterine blood, the devotee should avoid flesh as improper for living creatures. The devotee should always avoid flesh, onions, intoxicants of different kinds, garlic of all sorts. He should avoid oil for anointing; he should not sleep on beds with hollow posts or holes or where there is danger for living creatures. . . . For gain a living creature is killed, for meat money is given: both these sinners are burnt in the Raurava Hell and other hells. . . .” And so on to this: "He that eats flesh in transgression of the words of a sage, the man of evil mind, for the destruction of the two worlds, after being dedicated under the gospel of Sâkya, those sinners go to the most awful hell; the flesh-eaters are burnt in terrible hells like Raurava. Flesh free from the three objections, not prepared, unasked, unsolicited, there is none: therefore one should not eat flesh. A devotee should not eat flesh, which is blamed by me and by the Buddhas: members of a family that eats carrion flesh, devour each other." . . . And so on to this: “Ill-smelling and abominable, mad, he is born in a Candâla, or Pukkasa family, amongst low-caste again and again. He is born to one sprung of a female imp, in a flesh-eating family, he is born to a she-bear or a cat, the vile wretch. In the Hastikakshya, the Nirvana, the Angulimàlika, and the Lankavatara Sutra, I have reprovedthe eating of flesh. By Buddhas and by Bodhisattvas and by religious persons it has been reprehended; if one eats it, he is always born shameless and mad. But by avoiding those who eat flesh men are born among brahmins or in a family of devotees, and one is intelligent and wealthy. In suspicion touching things seen and heard one should avoid allmeat; philosophers understand nothing if members of a family that eats carrion flesh. As passion would be an obstacle to deliverance, so would be such things as flesh, or intoxicants. In future time, the eaters of flesh, speakers of delusion, will say that flesh is proper, blameless, praised by the Buddhas. But the pious should take his morsel in moderation, against the grain, like a useful physic, as though .it were the flesh of his own son. I who abide in kindliness have always reprehended this food; [such an one] should keep company with lions and tigers and other beasts. Therefore one should not eat flesh, which disturbs men's natures because it hinders deliverance and righteousness: this is the work of the noble.
Buddhist Resources on Vegetarianism and Animal Welfare
http://online.sfsu.edu/rone/Buddhism/Bu ... tures%20on