With Subha 2.31.2

2.31.2

Evameva kho, māṇava, bhikkhu …pe… yampi, māṇava, bhikkhu evaṃ samāhite citte …pe… āneñjappatte pubbenivāsānussatiñāṇāya cittaṃ abhinīharati abhininnāmeti.

In the same way, when their mind has become immersed in samādhi like this—purified, bright, flawless, rid of corruptions, pliable, workable, steady, and imperturbable—they project it and extend it toward recollection of past lives.