Brahmajalasutta 3.23.6

3.23.6

Yato kho, bho, ayaṃ attā pītiyā ca virāgā upekkhako ca viharati, sato ca sampajāno, sukhañca kāyena paṭisaṃvedeti, yaṃ taṃ ariyā ācikkhanti “upekkhako satimā sukhavihārī”ti, tatiyaṃ jhānaṃ upasampajja viharati, ettāvatā kho, bho, ayaṃ attā paramadiṭṭhadhammanibbānaṃ patto hotī’ti.

But with the fading away of rapture, this self enters and remains in the third absorption, where it meditates with equanimity, mindful and aware, experiencing for themselves the bliss of which the noble ones declare, “Equanimous and mindful, one meditates in bliss”. That’s how this self attains ultimate extinguishment in this life.’