Purābhedasuttanidadesa

Suttapiṭaka · Khuddakanikāya · Mahāniddesa · Vol. 29 · Section 437

[437] He for whom there is nothing in the world taken as his own, who does not sorrow over what is not, and who does not stray among dhammas — he indeed is called one at peace.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.