Digha Nikaya 22 (dn22:22.11)

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