Charak Samhita
क्षुद्रवातो यदा कोष्ठाद्व्यायामपरिघट्टितः । कण्ठे प्रपद्यते हिक्कां तदा क्षुद्रां करोति सः ॥३४॥
॥ Kshudra hikka॥ The vayu gets slightly aggravated in the koshtha (alimentary tract), due to the physical exercises and reaches the throat and produces kshudra hikka.
english translation
kSudravAto yadA koSThAdvyAyAmaparighaTTitaH । kaNThe prapadyate hikkAM tadA kSudrAM karoti saH ॥34॥
hk transliteration by Sanscript