The Compendium of Caraka 5.5.32

5.5.32

kaluṣe 'ambhasi paṅke vā kūpe vā tamasā++āvṛte/
svapne majjati śīghreṇa srotasā &hriyate ca yaḥ//

Who in a dream sinks into turbid water, mud, or a well enveloped in darkness,
and who is carried away by a swift current;