Is there any ref for vinnana kasina in text
Welcome to the forum.
As far as I know there are only these kasina: earth, water, fire, air, blue, yellow, red, white, light, and (limited) space.
Still each of the five khandhas has its own nimitta, the sign by which it is apprehended: rūpa-nimitta, vedanā-nimitta, saññā-nimitta, saṅkhāra-nimitta, and viññāṇa-nimitta.
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