Aṅguttara Nikāya · Discourse 10.21

The Lion’s Roar

Sīhanādasutta — Mahāvagga — the third chapter of the Tens

Setting
None stated in the source
Speakers
The Buddha alone, addressing the mendicants
Form
A lion simile, then the Buddha's ten powers named in turn, each closing the same refrain
Length
~3 minutes to read
Chapter's namesake, and a famous teaching
This discourse names the chapter and delivers one of the most cited teachings in the entire canon, the ten Tathāgata powers
Difficulty
★★★☆☆ — dense and doctrinally central, worth reading slowly

Why this discourse

Just as a lion emerges from his den at evening, surveys the four quarters, and roars three times before hunting, the Buddha's own teaching to an assembly is his lion's roar, grounded in ten powers — from knowing the possible and impossible to the ending of his own defilements — that let him claim the bull's place and turn the wheel of the teaching.

Reading guide

The teaching in one sentence

The Buddha possesses ten powers of a Realized One — knowing the possible and impossible, the results of deeds, where all paths of practice lead, the world's many elements, beings' diverse convictions and faculties, the states of meditative attainment, his own and others' past lives, others' rebirth according to their deeds, and the ending of his own defilements — and with these powers claims the bull's place and roars his lion's roar.

A vivid animal image for a philosophical claim

The discourse opens with unusually concrete natural observation: a lion emerging at evening, yawning, surveying every direction, roaring three times before the hunt — even naming the lion's own reason, avoiding injury to small creatures on uneven ground — before turning this image directly onto the Buddha's own act of teaching.

Ten powers, one shared refrain

Each of the ten powers follows an identical closing formula: since the Realized One truly understands this, it is a power of the Realized One, and relying on it he claims the bull's place, roars his lion's roar, and turns the divine wheel — the same three-part authority claimed identically ten times over.

This chapter's own namesake, one of the canon's most cited teachings

This discourse lends its own image, sīhanāda, the lion's roar, to the chapter's name, Mahāvagga — though the chapter's own generic title doesn't reflect it directly. The ten powers named here are among the most frequently cited formulas across the entire Pāli canon, marking a Buddha's own distinctive, complete knowledge.

Key terms

sīhanādaṁ nadati — “roars his lion's roar” — the discourse's own title image, applied directly to the Buddha teaching an assembly.
dasa tathāgatabalāni — “ten powers of a Realized One” — the discourse's own central teaching, among the most cited formulas in the canon.
ṭhānañca ṭhānato aṭṭhānañca aṭṭhānato yathābhūtaṁ pajānāti — “truly understands the possible as possible and the impossible as impossible” — the first power, opening the list.
āsavānaṁ khayā anāsavaṁ cetovimuttiṁ paññāvimuttiṁ — “the undefiled freedom of heart and freedom by wisdom ... due to the ending of defilements” — the tenth and final power, closing the list.
āsabhaṇṭhānaṁ paṭijānāti — “claims the bull's place” — the discourse's own image of supreme confidence, repeated after each of the ten powers.

The text

The discourse in full: the lion simile, then the Buddha's ten powers, each closing the same refrain. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

A lion, emerging to hunt

§1“Mendicants, towards evening the lion, king of beasts, emerges from his den, yawns, surveys the four quarters, and roars his lion’s roar three times. Then he sets out on the hunt. Why is that? ‘May I not injure any little creatures on unclear ground.’ ‘Lion’ is a term for the Realized One, the perfected one, the fully awakened Buddha. When the Realized One teaches Dhamma to an assembly, this is his lion’s roar.

Ten powers of a Realized One

§2The Realized One possesses ten powers of a Realized One. With these he claims the bull’s place, roars his lion’s roar in the assemblies, and turns the divine wheel. What ten? Firstly, the Realized One truly understands the possible as possible and the impossible as impossible. Since he truly understands this, this is a power of the Realized One. Relying on this he claims the bull’s place, roars his lion’s roar in the assemblies, and turns the divine wheel.

§3Furthermore, the Realized One truly understands the result of deeds undertaken in the past, future, and present in terms of grounds and causes. Since he truly understands this, this is a power of the Realized One. …

§4Furthermore, the Realized One truly understands where all paths of practice lead. Since he truly understands this, this is a power of the Realized One. …

§5Furthermore, the Realized One truly understands the world with its many and diverse elements. Since he truly understands this, this is a power of the Realized One. …

§6Furthermore, the Realized One truly understands the diverse convictions of sentient beings. Since he truly understands this, this is a power of the Realized One. …

§7Furthermore, the Realized One truly understands the faculties of other sentient beings and other individuals after encompassing them with his mind. Since he truly understands this, this is a power of the Realized One. …

§8Furthermore, the Realized One truly understands corruption, cleansing, and emergence regarding the absorptions, liberations, immersions, and attainments. Since he truly understands this, this is a power of the Realized One. …

§9Furthermore, the Realized One recollects many kinds of past lives. That is: one, two, three, four, five, ten, twenty, thirty, forty, fifty, a hundred, a thousand, a hundred thousand rebirths; many eons of the world contracting, many eons of the world expanding, many eons of the world contracting and expanding. He remembers: ‘There, I was named this, my clan was that, I looked like this, and that was my food. This was how I felt pleasure and pain, and that was how my life ended. When I passed away from that place I was reborn somewhere else. There, too, I was named this, my clan was that, I looked like this, and that was my food. This was how I felt pleasure and pain, and that was how my life ended. When I passed away from that place I was reborn here.’ Thus he recollects his many past lives, with features and details. Since he truly understands this, this is a power of the Realized One. …

§10Furthermore, with clairvoyance that is purified and superhuman, the Realized One sees sentient beings passing away and being reborn—inferior and superior, beautiful and ugly, in a good place or a bad place. He understands how sentient beings pass on according to their deeds. ‘These dear beings did bad things by way of body, speech, and mind. They denounced the noble ones; they had wrong view; and they chose to act out of that wrong view. When their body breaks up, after death, they’re reborn in a place of loss, a bad place, the underworld, hell. These dear beings, however, did good things by way of body, speech, and mind. They never denounced the noble ones; they had right view; and they chose to act out of that right view. When their body breaks up, after death, they’re reborn in a good place, a heavenly realm.’ And so, with clairvoyance that is purified and superhuman, he sees sentient beings passing away and being reborn—inferior and superior, beautiful and ugly, in a good place or a bad place. He understands how sentient beings pass on according to their deeds. Since he truly understands this, this is a power of the Realized One. …

§11Furthermore, the Realized One has realized the undefiled freedom of heart and freedom by wisdom in this very life, and lives having realized it with his own insight due to the ending of defilements. Since he truly understands this, this is a power of the Realized One. … These are the ten powers of a Realized One that the Realized One possesses. With these he claims the bull’s place, roars his lion’s roar in the assemblies, and turns the divine wheel.”

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Self-check quiz

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

Question 1 of 6
What image opens this discourse before applying it to the Buddha?
Correct: B. A vivid natural observation, turned directly onto the Buddha's own act of teaching.
Question 2 of 6
What is the first of the ten powers?
Correct: B. Opening the list of ten powers.
Question 3 of 6
What refrain closes each of the ten powers?
Correct: B. The same three-part claim of authority, repeated ten times.
Question 4 of 6
What is the tenth and final power?
Correct: B. Closing the list with the Buddha's own liberation.
Question 5 of 6
What does this discourse lend to its chapter's name?
Correct: B. The chapter's own namesake, though titled generically as Mahāvagga.
Question 6 of 6
How significant are the ten powers within the wider canon, according to the guide?
Correct: B. One of the canon's most central and widely repeated doctrinal formulas.
Answered 0 of 6 · Correct 0