Garudapurana 2.10.78

2.10.78

nirvyāpāraṃ tacca dehe vāyunaiva sa gacchati /
śarīraṃ yadavāpnoti taccāpyutkvamyati svayam //

becomes inactive, so he departs in the body along with the vital air alone. / Whatever body it obtains, it also departs from it of its own accord;