Digha Nikaya 22 (dn22:22.1)

Yo hi koci, bhikkhave, ime cattāro satipaṭṭhāne evaṁ bhāveyya sattavassāni, tassa dvinnaṁ phalānaṁ aññataraṁ phalaṁ pāṭikaṅkhaṁ