《長部經典》第二十二 Mahāsatipaṭṭhānasutta 大念住經 (DN 22)
第六節 苦 dukkha (pain)
（二十二） 393. Katamañca, bhikkhave, dukkhaṃ?
And what is pain?
Yaṃ kho, bhikkhave, kāyikaṃ dukkhaṃ kāyikaṃ asātaṃ kāyasamphassajaṃ dukkhaṃ asātaṃ vedayitaṃ,
Whatever is experienced as bodily pain, bodily discomfort, pain or discomfort born of bodily contact,
idaṃ vuccati, bhikkhave, dukkhaṃ.
that is called pain.