mn13 · 33-35.2

“yasmiṁ samaye, bhikkhave, bhikkhu pītiyā ca virāgā, upekkhako ca viharati, sato ca sampajāno sukhañca kāyena paṭisaṁvedeti yaṁ taṁ ariyā ācikkhanti: ‘upekkhako satimā sukhavihārī’ti tatiyaṁ jhānaṁ upasampajja viharati …pe… ”