Saṃyutta Nikāya 48 4. Sukhindriyavagga 31. Suddhikasutta “Pañcimāni, bhikkhave, indriyāni. Katamāni pañca? Sukhindriyaṃ, dukkhindriyaṃ, somanassindriyaṃ, domanassindriyaṃ, upekkhindriyaṃ—imāni kho, bhikkhave, pañcindriyānī”ti. Paṭhamaṃ.