Visuddhimagga VIII-204

228. Idaṃ kammaṭṭhānaṃ manasikaroto kassaci na cireneva nimittañca uppajjati, avasesajhānaṅgapaṭimaṇḍitā appanāsaṅkhātā ṭhapanā ca sampajjati.

于此（安般念）业处而作意的人们，有的不久便得生起（似）相及称为安止（定）的其余（寻伺等）诸禅支，为「安住」成就。

Ñ(VIII,204): When someone gives his attention to this meditation subject, sometimes it is not long before the sign arises in him, and then the fixing, in other words, absorption adorned with the rest of the jhāna factors, is achieved.