Aṣṭāṅgahṛdayasaṃhitā

chatrī jharjharapāṇiśca caredrātrau viśeṣataḥ||93||
tacchāyāśabdavitrastāḥ praṇaśyanti bhujaṅgamāḥ||93||

iti śrīvaidyapatisiṃhaguptasūnuśrīmadvāgbhaṭaviracitāyāmaṣṭāṅgahṛdayasaṃhitāyāṃ ṣaṣṭhe uttarasthāne sarpaviṣapratiṣedho nāma ṣaṭtriṃśo+adhyāyaḥ||36||