Where can I read the oldest and purest texts of Buddhism?

There is a general consensus on the Buddhist Canon, loosely these texts are thus classified;

Samyutta Nikaya, Mahjjima Nikaya, Anguttara Nikaya, Digha Nikaya are the 'core canonical texts' and the search for proto-canonical texts has not yielded any results.

Peri Canon; Dhammapada, Sutta Nipata, Patimokkha, Kuddhakapatha, Udana, Vimanavatthu, Theragatha, Therigatha, Niddesa, Patisambhiddamagga, Apadana, Buddhavansa, Cariyapitaka

Quasi Canon would include works like Vinaya and Abhidhamma books as well as; Suttavidhanga, Khandaka, Parivarapali, Milindapanha, Suttasangaha, Petakompadesa, Petavatthu, Nettipakarana and Jataka.

Afaik some of the Quasi Canonical texts are not universally accepted as the Pali Canon among Theravadins, ie Milindapanha is generally not included in 'the canon' outside of Myanmar and 'Jataka' lit means 'causing confusion' so my impression is that the collection is hardly given any authority.

As for works specific to a school like the Abhidhamma, these would be school specific and there is no consensus on the status of these works even within the school itself like Theravada ie wherein many Bhikkhus would reject Abhidhamma books, let alone Abhidhamma, people frequently question the autheticity of even the Digha Nikaya and particular discourses generally included in the core canon but it is only a not so impressive minority of people who go that far in entertaining their delusions.

You can find the translations for most of these texts available as pdfs online and sites like suttacentral and accesstoinsight. I recommend Thanissaro Bhikkhu's translations because they are, as i see it, the most litteral and thus free from personal interpretations being put in as a translation.

From ancient times to the present, the Dhammapada has been regarded as the most succinct expression of the Buddha’s teaching found in the Pali Canon and the chief spiritual testament of early Buddhism. ~ Bhikkhu Bodhi

Free translations exist online:

• Acharya Buddharakkhita
• Thanissaro Bhikkhu
• Daw Mya Tin
• Narada Maha Thera
• Weragoda Sarada Maha Thero
• F. Max Muller
• Albert J. Edmunds
• Ānandajoti Bhikkhu

You can read "the original" Pali and compare various translations on neatnik.net

The man who is without blind faith, who knows the Uncreated, who has severed all links, destroyed all causes (for karma, good and evil), and thrown out all desires — he, truly, is the most excellent of men.

~v97

Not despising, not harming, restraint according to the code of monastic discipline, moderation in food, dwelling in solitude, devotion to meditation — this is the teaching of the Buddhas.

~v185

His passion, aversion, conceit, & contempt, have fallen away — like a mustard seed from the tip of an awl: he's what I call [someone of worthy conduct and spiritual maturity¹].

~ v407

¹ Gil Fronsdal's translation of brāhmaṇa / brahmin in the context of this chapter.

There is also the ''Ashoka's edicts'', since people currently date them to the year -250 and one edict mentions what Ashoka thought people should read. Of course people have tried to found those texts in the suttas in pali.

https://ocbs.org/wp-content/uploads/2015/09/authenticity.pdf

There is disagreement amongst scholars concerning which Pali suttas correspond to some of the text. Vinaya samukose: probably the Atthavasa Vagga, Anguttara Nikaya, 1:98-100. Aliya vasani: either the Ariyavasa Sutta, Anguttara Nikaya, V:29, or the Ariyavamsa Sutta, Anguttara Nikaya, II: 27-28. Anagata bhayani: probably the Anagata Sutta, Anguttara Nikaya, III:100. Muni gatha: Muni Sutta, Sutta Nipata 207-221. Upatisa pasine: Sariputta Sutta, Sutta Nipata 955-975. Laghulavade: Rahulavada Sutta, Majjhima Nikaya, I:421.

https://www.accesstoinsight.org/lib/authors/dhammika/wheel386.html

Below is the core of buddhism which extracted from Saccabihanga sutta

"What is meant by not getting what one desires, that too is suffering? To beings subject to birth there comes desire: 'O might we not be subject to birth, and birth not come to us.' But this cannot be attained by mere desiring. So not getting what one desires, that too, is suffering. To beings subject to aging there comes the desire: 'O might we not be subject to aging, and aging not come to us...' (as before). To beings subject to disease there comes the desire: 'O might we not be subject to disease and disease not come to us...' To beings subject to death there comes the desire: 'O might we not be subject to death and death not come to us...' To beings subject to sorrow, lamentation, suffering, misery, and despair there comes the desire: 'O might we not be subject to sorrow, lamentation, suffering, misery, and despair, and sorrow, lamentation, suffering, misery, and despair not come to us.' But this cannot be attained by merely desiring. So not getting what one desires that too is suffering.

But in above translation it is written with the word too (that too1 is suffering). But in pali cannon there's nothing like that. It just say, not getting what one desires (yampiccan na labhathi thampi dukkhan). The equal meaning to this in english would be insatiable meaning. This is the core of the real buddhism, once you understand then you will get a complete different picture about noble truths, dependent origination etc.. And one other correction should be, above explanation is given thinking jathi as birth of living beings, jara as aging of living beings. But that's not 100% correct, in dhamma what is highlighted as birth jathi is the birth of thoughts (good and bad both). And when you are in the right track you will get more wider picture on this. It's bit hard to explain here. If you are interested visit the this website.

Due to the most of the misguided people this real dhamma is hidden. That's the nature of it. That's why it says Buddha is a very rear person who comes to the world only once for a long long time period. And exposed the reality (dhamma) of this world, which only buddha can be realised without help of anyone. So no need to worry about that.

NOTE: Interesting question from someone who really wants / tries to understand the buddha's message. This answer might be down voted as it doesn't understand by the majority in this forum. Anyway I wrote it though I'm to be given down votes as it seems you are seeking the truth of the world.

a method of salvation without a vicarious Savior;

this is not false, but people need a buddha to hear about the dhamma, which can be seen as a revelation, like when there is some prophet revealing some teaching to people. For instance the people who keep saying that ''mediation is enough'' to be enlightened are competently wrong. Even if people were skilled at whatever samadhi they cultivate, they would fail be enlightened, since they did not hear about the dhamma and then investigate for themselves the cause of the arising of dukkha and the cause of the cessation of dukkha.

Anyway, since there was always a vinaya and some bikkhus told by the buddha how to live and what rules to follow, it can be said that that the dhamma is a religion, at least for the bikkhus.

But since there is not what people crave the most, ie cults, rituals, arts, entertainment, symbols, philosophy, as meritorious activities, even less for enlightenment, you can say that the dhamma is not religion, especially for lay people.

Currently people do not talk about pre-religion buddhism and post religious. They talk about pre-sectarian buddhism and post-sectarian buddhism, which is taken to mean before and after some council long time ago, eg after the 2nd council.

For the oldest texts which are easily available in english, it would be as usual the texts in pali, ie some texts from this long list

and in more details here https://en.wikipedia.org/wiki/Early_Buddhist_Texts https://en.wikipedia.org/wiki/Gandh%C4%81ran_Buddhist_texts https://en.wikipedia.org/wiki/Early_Buddhist_schools

It seems to me the question is based on false premises.

But any recent texts I read about Buddhism all make it appear as if Buddhism is no different from any other dogmatic religion. I understand that Buddhism also underwent a lot of changes due to local cultures and competition from other religions.

I don't know what you've read but I have never found a text suggesting Buddhism is a dogmatic religion unless it was written by as sceptical person with no knowledge.

There have been changes and the teachings will continue to be represented, repackaged and re-explained to suit the times, but the message has not changed a jot.

What I want to learn is the original core message of Buddhism before it was made into a religion. Where can I find texts for understand this message.

This is a matter of definitions. Nothing has changed. It always was a religion by a certain definition but not by other definitions. A good and well-known book is 'What the Buddha Taught'.

There is no method for determining the truth and accuracy of texts except by using your own knowledge and judgement. It would be hopeless (and not good practice) to imagine that someone else can tell you which texts are 'the core message' and which are not.

Some Buddhists argue that the Mahayana message is not 'core' some that it is. Only you can decide this matter. It would be more or less suicidal for a practitioner to trust other people to tell them which texts are important and which should be ignored except in very obvious cases. There would be no consensus on this forum as to which texts give the core message and which not or even what the core message is. This is as it should be, since we cannot read it in a book, or at least cannot be sure our interpretation of the book is correct. So as usual this is all about practice and the pursuit of knowledge that does not come from books. Armed with this we are then able to judge the books for ourselves.

For a start one would have to be able to judge the claim that Theravada is the correct doctrine and Mahayana is not. This is not a question that can be answered just by asking an expert but takes time and work. If you ask an expert you still won't know whether their answer is correct.

Just thinking out loud and I'm not sure this is particularly helpful.

EDIT: I'd recommend the Bhagavad Gita but that might be contentious. I'll mention my usual recommendation which is 'The Sun of Wisdom' by Kenpo Tsutrim Gymatso but this is rather more philosophical than practical. Or maybe 'Abhidhamma Studies' by Nyanaponika Thera. I read the suttas as Mahayana texts so could recommend them. A good book on Zen might be useful so perhaps 'Three Pillars of Zen' by Philip Kapleau or something similar.

Much of the original teaching, as remembered by students, is preserved in the Pali Canon.

The texts are there, but how to understand and interpret them remains subject to debate. There's no concensus on what the core Buddha's teaching was. There are at least 3-4 (if not more) different interpretations.

One interpretation is called Theravada, and it focuses on obvious literal meaning of Pali Canon. Another is what I call the Buddhadasa interpretation (represented by Dhammadhatu here on this site), which understands the texts metaphorically as speaking about mind. The third is Madhyamaka, which goes even further into what they say Buddha really meant behind what he said. Then there's Zen and Dzogchen which took the main points from Madhyamaka and threw away Pali Canon.

If you read some Pali Canon, you will see the first layer right away, what Theravada studies. If you try to connect it all together and understand how it all fits, you may rediscover some of the Buddhadasa's ideas on your own. Then if you are good at reading between the lines, you may notice that all of the Madhyamaka ideas come from the Pali Canon, too. Then, if you try to implement these ideas in practice, you will see that Zen and Dzogchen really know what they are doing.

There's no concensus on how deep the teaching goes. It's up to you to decide, how much of the inferred meaning is too much, and how far you want to go.

That said, in every group of Buddhists there are always people who stick to their tradition superficially, thus turning it into a religion. If you can be free from sectarianism, you can learn from each school and assemble the entire puzzle by yourself.

The original teachings are found in the Pali suttas, where the Refuge in the Dhamma (Teachings) is described as follows:

The teaching is well explained by the Buddha—visible in the here & now, immediately effective, inviting inspection, relevant, so that sensible people can know it for themselves.

SN 16.3

You start with the 1st three sermons of the Buddha, which are:

1. Four Noble Truths and Noble Eightfold Path

2. Three Characteristics

3. Three Defilements

Then:

4. Dependent Origination

5. Emptiness

Also, where the Buddha declares what exactly he uniquely teaches:

6. Handful of Leaves

7. "Suffering and the cessation of suffering"

8. Emptiness

9. Six elements; six bases for contact; eighteen mental examinations; and four noble truths

To understand the original teachings, the following words are best understood:

(i) "jati" ("birth") or "jatiya", which means "self/social identity".

(ii) "marana" ("death"), which means "death of identity".

(iii) "kaya" (often translated as "body"), which means "group" or "collection" of aggregates.

(iv) "nirodha", which can mean "cessation" but often means the cessation of ignorance & craving.

(v) "beings" ("satta'), which on a spiritual level refers to thought created "idea" or "view".

(vi) "dukkha". in relation to the four noble truths, "dukkha" means "suffering" or "stress"; in relation to the Three Characteristics of the 2nd sermon, "dukkha" means "unsatisfactoriness", "ungratifying" or "unable to bring true happiness"; in relation to feeling, "dukkha" means "painful" or "unpleasant".

Once the above is understood, you will be able to negotiate your way through the teachings.

You can read these book to help you:

• Two Kinds of Language

• Buddha-Dhamma for Students

• The Shape of Suffering up to & including page 6

• Nibbana For Everyone

• Kamma in Buddhism