The Compendium of Caraka 5.5.31

5.5.31

bhūmau pāṃśūpadhānāyāṃ valmīke vā 'atha bhasmani/
śmaśānāyatane śvabhre svapne yaḥ &prapatatyapi//

Who falls down in a dream onto ground covered with dust, onto an anthill, onto ashes,
into a cremation ground, or into a pit;