Brihat Parashara Hora Shastra
बालारिष्टे समा अष्टौ योगारिष्टे च विंशतिः । द्वात्रिंशद् वत्ररा अल्पे चतुष्षष्टिस्तु मध्यमे ॥ ५३॥
The life-span in Bal Risht is 8 years, in Yog Risht 20 years, in short, medium and long lives, respectively, 32, 64 and 120 years.
english translation
bAlAriSTe samA aSTau yogAriSTe ca viMzatiH । dvAtriMzad vatrarA alpe catuSSaSTistu madhyame ॥ 53॥
hk transliteration by Sanscript