Snp 5.14 PTS: Sn 1112-1115
Posala-manava-puccha: Posala's Questions
Anandajoti Bhikkhuhttp://www.ancient-buddhist-texts.net/T ... avaggo.pdf
Listen at: http://www.archive.org/details/The-Way-to-the-Beyond
(To) the one who points out the past, said venerable Posàla,
the unmoved one, who has cut off doubt,
who is perfect in everything, I have come in need with a question:
For the one in whom perception of form has ended,
(who), on the inside and outside is seeing `there is nothing whatsoever', 
I ask about (his) knowledge, Sakyan, how is such a one led further?
All the stations of consciousness, Posàla, said the Gracious One,
the Realised One knows,
he knows where that one stands, what he is intent on, what he is going towards.
Having known the origin of nothingness, and that enjoyment is called a fetter,
knowing deeply that it is so, and then having insight into this:
this is real knowedge for him, for the brahmin who is accomplished.
 This again refers to the sphere of nothingness (àkiÿcaÿÿàyatanaü).