Sedakasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 762

[762] Bhikkhus, thinking, 'I will protect myself,' the establishment of mindfulness (satipaṭṭhāna) should be cultivated; thinking, 'I will protect others,' the establishment of mindfulness should be cultivated. Bhikkhus, protecting oneself, one protects others; protecting others, one protects oneself. End of the Ninth Sutta. The Second Sedaka Sutta On Mindfulness Directed to the Body (kāyagatāsati)

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.