Brahmajalasutta 3.21.6

3.21.6

Yato kho, bho, ayaṃ attā vivicceva kāmehi vivicca akusalehi dhammehi savitakkaṃ savicāraṃ vivekajaṃ pītisukhaṃ paṭhamaṃ jhānaṃ upasampajja viharati, ettāvatā kho, bho, ayaṃ attā paramadiṭṭhadhammanibbānaṃ patto hotī’ti.

Quite secluded from sensual pleasures, secluded from unskillful qualities, this self enters and remains in the first absorption, which has the rapture and bliss born of seclusion, while placing the mind and keeping it connected. That’s how this self attains ultimate extinguishment in this life.’