The Buddha teaches about the unconditioned and the path leading to it.
Sāvatthinidānaṁ.
At Sāvatthi.
“Asaṅkhatañca vo, bhikkhave, desessāmi asaṅkhatagāmiñca maggaṁ. Taṁ suṇātha.
“Bhikkhus, I will teach you the |unconditioned::not created, unconstructed, unformed, epithet of Nibbāna [asaṅkhata]| and the path leading to the unconditioned. Listen to this.
Katamañca, bhikkhave, asaṅkhataṁ? Yo, bhikkhave, rāgakkhayo dosakkhayo mohakkhayo—idaṁ vuccati, bhikkhave, asaṅkhataṁ.
And what, bhikkhus, is the unconditioned? The |wearing away of passion::exhaustion of intense desire, ending of strong emotions, infatuation, obsession, lust [rāgakkhaya]|, the |wearing away of aversion::ending of ill will, extinction of hatred [dosakkhaya]|, the |wearing away of delusion::wearing away of illusion, ending of hallucination, ending of misperceptions and distorted views [mohakkhaya]| — this is called the unconditioned.
Katamo ca, bhikkhave, asaṅkhatagāmimaggo? Kāyagatāsati. Ayaṁ vuccati, bhikkhave, asaṅkhatagāmimaggo.
And what, bhikkhus, is the path leading to the unconditioned? |Mindfulness directed to the body::awareness immersed in the body, dwelling in the body. [kāyagatāsati]|. This is called the path leading to the unconditioned.
Iti kho, bhikkhave, desitaṁ vo mayā asaṅkhataṁ, desito asaṅkhatagāmimaggo. Yaṁ, bhikkhave, satthārā karaṇīyaṁ sāvakānaṁ hitesinā anukampakena anukampaṁ upādāya, kataṁ vo taṁ mayā. Etāni, bhikkhave, rukkhamūlāni, etāni suññāgārāni. Jhāyatha, bhikkhave, mā pamādattha; mā pacchā vippaṭisārino ahuvattha. Ayaṁ vo amhākaṁ anusāsanī”ti.
Thus, bhikkhus, I have taught you the unconditioned and the path leading to the unconditioned. What a teacher should do out of |compassion::benevolence, concern, gentle regard [anukampa]| for his disciples, seeking their welfare, I have done for you, bhikkhus. Here are these roots of trees, here are these empty huts. |Meditate::contemplate [jhāyati]|, bhikkhus, do not be |negligent::inattentive, careless, intoxicated [pamāda]|; lest you later regret it. This is our instruction to you.”
At Sāvatthi.
“Bhikkhus, I will teach you the |unconditioned::not created, unconstructed, unformed, epithet of Nibbāna [asaṅkhata]| and the path leading to the unconditioned. Listen to this.
And what, bhikkhus, is the unconditioned? The |wearing away of passion::exhaustion of intense desire, ending of strong emotions, infatuation, obsession, lust [rāgakkhaya]|, the |wearing away of aversion::ending of ill will, extinction of hatred [dosakkhaya]|, the |wearing away of delusion::wearing away of illusion, ending of hallucination, ending of misperceptions and distorted views [mohakkhaya]| — this is called the unconditioned.
And what, bhikkhus, is the path leading to the unconditioned? |Mindfulness directed to the body::awareness immersed in the body, dwelling in the body. [kāyagatāsati]|. This is called the path leading to the unconditioned.
Thus, bhikkhus, I have taught you the unconditioned and the path leading to the unconditioned. What a teacher should do out of |compassion::benevolence, concern, gentle regard [anukampa]| for his disciples, seeking their welfare, I have done for you, bhikkhus. Here are these roots of trees, here are these empty huts. |Meditate::contemplate [jhāyati]|, bhikkhus, do not be |negligent::inattentive, careless, intoxicated [pamāda]|; lest you later regret it. This is our instruction to you.”
Sāvatthinidānaṁ.
“Asaṅkhatañca vo, bhikkhave, desessāmi asaṅkhatagāmiñca maggaṁ. Taṁ suṇātha.
Katamañca, bhikkhave, asaṅkhataṁ? Yo, bhikkhave, rāgakkhayo dosakkhayo mohakkhayo—idaṁ vuccati, bhikkhave, asaṅkhataṁ.
Katamo ca, bhikkhave, asaṅkhatagāmimaggo? Kāyagatāsati. Ayaṁ vuccati, bhikkhave, asaṅkhatagāmimaggo.
Iti kho, bhikkhave, desitaṁ vo mayā asaṅkhataṁ, desito asaṅkhatagāmimaggo. Yaṁ, bhikkhave, satthārā karaṇīyaṁ sāvakānaṁ hitesinā anukampakena anukampaṁ upādāya, kataṁ vo taṁ mayā. Etāni, bhikkhave, rukkhamūlāni, etāni suññāgārāni. Jhāyatha, bhikkhave, mā pamādattha; mā pacchā vippaṭisārino ahuvattha. Ayaṁ vo amhākaṁ anusāsanī”ti.