Candūpamāsutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 470

[470] Dwelling at Sāvatthī ... There the Blessed One ... [said:] "Bhikkhus, approach families like the moon — drawing back the body and drawing back the mind, ever as newcomers among families, not impudent. Just as, bhikkhus, a man looking down into an old well, or a mountain precipice, or an impassable river gorge would draw back the body and draw back the mind, even so, bhikkhus, approach families like the moon — drawing back the body and drawing back the mind, ever as newcomers among families, not impudent. "Kassapa, bhikkhus, approaches families like the moon — drawing back the body and drawing back the mind, ever a newcomer among families, not impudent."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.