Sampasadaniyasutta 15.3

15.3

Idha, bhante, ekacco samaṇo vā brāhmaṇo vā ātappamanvāya …pe… tathārūpaṃ cetosamādhiṃ phusati, yathāsamāhite citte anekavihitaṃ pubbenivāsaṃ anussarati.

Firstly, 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 many hundreds of thousands of past lives,