Garudapurana 2.23.10

2.23.10

svapnamadhye tu pakṣīndra pretaliṅgānyanekadhā /
svakalatraṃ svabandhuṃ vā svasutaṃ svapatiṃ vibhum /
vidyamānaṃ mṛtaṃ paśyetpretadoṣeṇa niścitam //

in a dream, O King of Birds, these are pretas' manifold signs. / If one sees a wife, kinsman, son, or husband who is alive as dead, / it is certainly due to an affliction from a preta.