User blog comment:Monkey.D.Me/SOUL FAQ (*^*)/@comment-3075024-20120301131223/@comment-4783583-20120302014709

I hope you mean nullify or elsewise neutralize (which doesn't really fit in this sentence) because nutrify isn't a real word.

To answer your quesion, a untrained haki user would knock him out unknowingly but a trained haki user first has to detect him. My guess is that the same happens to him as happens to everyone else, he loses consciousness, yes that would make him an unconscious soul. However in his journey towards his body he must have slept, making him a sleeping soul.