Sampasadaniyasutta 15.10

15.10

Puna caparaṃ, bhante, idhekacco samaṇo vā brāhmaṇo vā ātappamanvāya …pe… tathārūpaṃ cetosamādhiṃ phusati, yathāsamāhite citte anekavihitaṃ pubbenivāsaṃ anussarati.

Furthermore, some ascetic or brahmin—by dint of keen, resolute, committed, and diligent effort, and right application of mind—experiences an immersion of the heart of such a kind that they recollect their past lives for as many as ten eons of the expansion and contraction of the cosmos,