Bāhirāyatanaparijānanasutta
“Rūpe, bhikkhave, anabhijānaṁ aparijānaṁ avirājayaṁ appajahaṁ abhabbo dukkhakkhayāya. Sadde … gandhe … rase … phoṭṭhabbe … dhamme anabhijānaṁ aparijānaṁ avirājayaṁ appajahaṁ abhabbo dukkhakkhayāya. Rūpe ca kho, bhikkhave, abhijānaṁ parijānaṁ virājayaṁ pajahaṁ bhabbo dukkhakkhayāya. Sadde … gandhe … rase … phoṭṭhabbe … dhamme abhijānaṁ parijānaṁ virājayaṁ pajahaṁ bhabbo dukkhakkhayāyā”ti.
Complete Understanding of the Exterior
“Mendicants, without directly knowing and completely understanding sights … sounds … smells … tastes … touches … ideas, without dispassion for them and giving them up, you can’t end suffering. By directly knowing and completely understanding sights … sounds … smells … tastes … touches … ideas, having dispassion for them and giving them up, you can end suffering.”