Shiva Purana

siva.sh/siva-purana/uma-samhita/25/54

अष्टघस्रप्रभेदेन द्विवर्षं हि स जीवति ।। चतुर्मासा हि विज्ञेयाश्चतुर्विंशद्दिनावधिः।। ५४।।

sanskrit

If it flows for eight days, he lives for two yean four months and twenty-four days.

english translation

aSTaghasraprabhedena dvivarSaM hi sa jIvati || caturmAsA hi vijJeyAzcaturviMzaddinAvadhiH|| 54||

hk transliteration by Sanscript