Charak Samhita
समानेनावधूतोऽग्निरुदर्यः पवनोद्वहः। काले भुक्तं समं सम्यक् पचत्यायुर्विवृद्धये॥७॥
The samana vata, that has an inherent ability to intensify the agni, intensifies the digestive enzymes and properly digests the food that one consumes timely and in an appropriate quantity, thus leading to longevity.
english translation
samAnenAvadhUto'gnirudaryaH pavanodvahaH। kAle bhuktaM samaM samyak pacatyAyurvivRddhaye॥7॥
hk transliteration by Sanscript