Puna caparaṁ, bhikkhave, sāriputto sukhassa ca pahānā dukkhassa ca pahānā pubbeva somanassadomanassānaṁ atthaṅgamā adukkhamasukhaṁ upekkhāsatipārisuddhiṁ catutthaṁ jhānaṁ upasampajja viharati.
Furthermore, with the giving up of pleasure and pain, and the ending of former happiness and sadness, he entered and remained in the fourth absorption, without pleasure or pain, with pure equanimity and mindfulness.
Ye ca catutthe jhāne dhammā—upekkhā adukkhamasukhā vedanā passaddhattā cetaso anābhogo satipārisuddhi cittekaggatā ca, phasso vedanā saññā cetanā cittaṁ chando adhimokkho vīriyaṁ sati upekkhā manasikāro—tyāssa dhammā anupadavavatthitā honti.
And he distinguished the phenomena of the fourth absorption one by one: equanimity and neutral feeling and mental unconcern due to tranquility and pure mindfulness and unification of mind; contact, feeling, perception, intention, mind, enthusiasm, decision, energy, mindfulness, equanimity, and application of mind.
Regarding those phenomena, he meditated without getting involved or shying away, independent, untied, liberated, detached, his mind without boundaries.