Mahākappinasutta

Suttapiṭaka · Saṁyuttanikāya · Mahāvaggasaṁyutta · Vol. 19 · Section 1324

[1324] "Bhikkhus, through the development and frequent cultivation of whatever concentration (samādhi) there comes to be neither shaking nor trembling of the body, nor shaking nor trembling of the mind (citta) — that bhikkhu, bhikkhus, is one who gains that concentration at will, who gains it without trouble, who gains it without difficulty."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.