[DiBellaBam]

kasina meditation is mentioned as one of the 40 samatha meditation objects in the visuddhimagga, i'm not sure if there is any source in the suttas.

mn 77.24; an x.29

dasayimāni, bhikkhave, kasiṇāyatanāni. Katamāni dasa? Pathavīkasiṇameko sañjānāti uddhaṃ adho tiriyaṃ advayaṃ appamāṇaṃ; āpokasiṇameko sañjānāti…pe… tejokasiṇameko sañjānāti… vāyokasiṇameko sañjānāti… nīlakasiṇameko sañjānāti… pītakasiṇameko sañjānāti… lohitakasiṇameko sañjānāti… odātakasiṇameko sañjānāti… ākāsakasiṇameko sañjānāti… viññāṇakasiṇameko sañjānāti uddhaṃ adho tiriyaṃ advayaṃ appamāṇaṃ. Imāni kho, bhikkhave, dasa kasiṇāyatanāni.

There are these ten totality-dimensions (kasiṇā devices). Which ten? One perceives the earth-totality above, below, all-around: Non-dual,[3] unlimited. One perceives the water-totality... The fire-totality... The wind-totality... The blue-totality... The yellow-totality... The red-totality... The white-totality... The space-totality... The consciousness-totality above, below, all-around: Non-dual, unlimited. These are the ten totalities. Now, of these ten totalities, this is supreme: When one perceives the consciousness-totality above, below, all-around: Non-dual, unlimited. And there are beings who are percipient in this way. Yet even in the beings who are percipient in this way there is still aberration, there is change. Seeing this, the instructed disciple of the noble ones grows disenchanted with that. Being disenchanted with that, he becomes dispassionate toward what is supreme, and even more so toward what is inferior.

http://www.accesstoinsight.org/tipit....029.than.html