Saṃyutta Nikāya - The Connected Discourses
Connected Discourses on the Establishments of Mindfulness: SN47:24 Simple Version
1 Sāvatthinidānaṃ. "Cattārome, bhikkhave, satipaṭṭhānā. Katame cattāro? Idha, bhikkhave, bhikkhu kāye kāyānupassī viharati ātāpī sampajāno satimā, vineyya loke abhijjhādomanassaṃ; vedanāsu … pe … citte … pe … dhammesu dhammānupassī viharati ātāpī sampajāno satimā, vineyya loke abhijjhādomanassaṃ. Ime kho, bhikkhave, cattāro satipaṭṭhānā"ti.
Catutthaṃ.