Charak Samhita
वर्षशतं खल्वायुषः प्रमाणमस्मिन् काले ॥२९॥
॥ Lifespan of human beings॥ In the Kali Age, the normal span of life (of human beings) is one hundred years. The factors responsible for the maintenance (of the normal span) of life are:
english translation
varSazataM khalvAyuSaH pramANamasmin kAle ॥29॥
hk transliteration by Sanscript