[843] Furthermore, Sāriputta, a bhikkhu should reflect thus: 'Have I developed the four establishments of mindfulness (satipaṭṭhāna)?' If, Sāriputta, a bhikkhu, reviewing, knows thus: 'I have not developed the four establishments of mindfulness,' then, Sāriputta, that bhikkhu should strive for the development of the four establishments of mindfulness. But if, Sāriputta, a bhikkhu, reviewing, knows thus: 'I have developed the four establishments of mindfulness,' then, Sāriputta, that bhikkhu should dwell with that very rapture (pīti) and gladness, training day and night in wholesome dhammas.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.