Bhagavatapurana 3.28.40

3.28.40

yatholmukād visphuliṅgād dhūmād vāpi sva-sambhavāt /
apy ātmatvenābhimatād yathāgniḥ pṛthag ulmukāt //

40. Just as the fire is a thing different from the piece of fuel (on fire, and from a spark or smoke issuing from it as well as from some other burning fuel from which that was lighted, so also the Atman is different from the body (once) regarded as self.