The Compendium of Caraka 1.13.72

1.13.72

nālaṃ snehasamṛddhasya śamāyānnaṃ sugurvapi/
sa cet suśītaṃ salilaṃ nāsādayati dahyate/
yathaivāśīviṣaḥ kakṣamadhyagaḥ svaviṣāgninā//

Even very heavy food is not adequate to pacify one full of unctuous substance; / if he does not obtain very cold water, he is burned / just as a venomous serpent in the midst of dry grass [is burned] by the fire of its own poison.