Sukhumasutta

Suttapiṭaka · Saṁyuttanikāya · Saḷāyatanavaggasaṁyutta · Vol. 18 · Section 321

[321] As a tortoise draws its limbs into its own shell, so a bhikkhu, drawing in the thoughts of the mind (manovitakka), independent, not harassing another, fully quenched, would not blame anyone. The Third.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.