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Saṃyutta Nikāya · Discourse 29.3

Sabbath

Uposathasutta — Nāgavagga

Setting
Sāvatthī, Jeta's Grove, Anāthapiṇḍika's monastery
Speakers
A mendicant questions the Buddha, who answers by describing egg-born dragons' own reasoning
Form
A question-and-answer dialogue, the answer given as reported first-person reasoning attributed to the dragons themselves
Length
~2 minutes to read
Northern parallel
A rough counterpart may exist in the Chinese Saṃyukta-āgama (T99), though this reading guide does not assert a specific matching sutra number
Difficulty
★★☆☆☆ — straightforward once the reported-speech structure is clear

Why this discourse

This discourse opens a new register for this saṃyutta: rather than simply naming a taxonomy, it explains why egg-born dragons keep the sabbath (uposatha) at all, putting the reasoning directly into the dragons' own mouths — they recall doing mixed good and bad deeds in the past, recognize that this mixed conduct is exactly what produced their present egg-born state, and resolve to do good now for a better rebirth to come. It is a portrait of beings already reborn as dragons using the very same moral logic that governs human rebirth, applied reflexively to their own condition.

Reading guide

A question about a puzzling practice

A mendicant asks the Buddha directly why some egg-born dragons keep the sabbath "having transformed their bodies" — dragons, already reborn as dragons, voluntarily undertaking a practice associated with moral self-improvement.

The dragons' own reported reasoning

The Buddha's answer is framed as the dragons' own first-person thought: "in the past we did both kinds of deeds by body, speech, and mind" — mixed conduct, neither purely good nor purely bad, which produced their present rebirth among egg-born dragons.

Recognizing cause, and resolving to change it

Having identified their own mixed past conduct as the specific cause of their present state, the dragons reason forward: good conduct now could produce "a good place, a heavenly realm" as their next rebirth — the same causal logic this project has already traced across many earlier saṃyuttas, now voiced by non-human beings about themselves.

The first of a four-part set

This discourse treats only egg-born dragons; SN 29.4–6 apply the identical reasoning to womb-, moisture-, and spontaneously-born dragons in turn, with SN 29.4 and 29.5 compressed to editorial stubs and SN 29.6 given in full, mirroring this discourse's own wording almost exactly.

Key terms

uposatha — sabbath — a periodic observance day associated with heightened moral discipline, here undertaken by dragons themselves
vikubbamānā — "having transformed their bodies" — the dragons' own shape-shifting ability, assumed rather than explained in the question
dvayakārī — one who does both kinds of deeds — the mixed good-and-bad conduct the dragons identify as their own past cause
kāyassa bhedā paraṁ maraṇā — "when the body breaks up, after death" — the standard formula marking the transition to a new rebirth
saggaṁ lokaṁ — "a heavenly realm" — the better rebirth the dragons hope their present good conduct will produce

The text

The complete discourse: the mendicant's question and the dragons' own reported reasoning in full. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

§1At one time the Buddha was staying near Sāvatthī in Jeta’s Grove, Anāthapiṇḍika’s monastery. Then a mendicant went up to the Buddha, sat down to one side, and said to him: “Sir, what is the cause, what is the reason why some egg-born dragons keep the sabbath, having transformed their bodies?”

§2“Mendicant, it’s when some egg-born dragons think: ‘In the past we did both kinds of deeds by body, speech, and mind. When the body broke up, after death, we were reborn in the company of the egg-born dragons. If today we do good things by body, speech, and mind, when the body breaks up, after death, we may be reborn in a good place, a heavenly realm. Come, let us do good things by way of body, speech, and mind.’ This is the cause, this is the reason why some egg-born dragons keep the sabbath, having transformed their bodies.”

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Self-check quiz

Eight questions. Click an answer to see immediate feedback. No score is recorded — this is for your own checking.

Question 1 of 8
What practice does this discourse explain some egg-born dragons undertaking?
Correct: A. A practice associated with heightened moral discipline, here voluntarily kept by dragons.
Question 2 of 8
What do the egg-born dragons recall about their own past conduct?
Correct: A. Mixed conduct, which they identify as the specific cause of their present egg-born state.
Question 3 of 8
What do the dragons hope their present good conduct will produce?
Correct: A. The same forward-looking causal reasoning applied reflexively by the dragons to themselves.
Question 4 of 8
How is the Buddha's answer framed in this discourse?
Correct: A. "It's when some egg-born dragons think..." — their own voice, reported.
Question 5 of 8
Which birth-mode of dragon does this specific discourse concern?
Correct: A. The first of four parallel discourses (SN 29.3–6), one per birth mode.
Question 6 of 8
How do SN 29.4 and SN 29.5 treat this same theme for the other birth modes?
Correct: A. Only SN 29.6 (spontaneously-born) is given in full alongside this discourse.
Question 7 of 8
Where is this discourse set?
Correct: A. Given in full here, unlike most of this saṃyutta's other discourses, which abbreviate the setting.
Question 8 of 8
What does this discourse's portrait of dragons reveal about how the text treats them?
Correct: A. The dragons reason about their own past and future rebirths using the same causal framework applied to humans elsewhere in the canon.
Answered 0 of 8 · Correct 0

Further reading

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