Saṃyutta Nikāya
Saḷāyatanavaggo
Asaṅkhatasaṃyuttaṃ
Paṭhamavaggo
Savitakkasavicārasuttaṃ
... And which, almsmen, way heading for the uninclined?
With thoughts plus with thinking, the concentration. Mere thinking without thoughts, the concentration. Without thoughts plus without thinking, the concentration.
This is called, almsmen, way heading for the uninclined. ...