Śrīmad-Bhāgavatam · Text 8.14.4
Who is speaking and story frame
चतुर्युगान्ते कालेन ग्रस्ताञ्छ्रुतिगणान्यथा ।
तपसा ऋषयोऽपश्यन्यतो धर्म: सनातन: ॥ ४ ॥
catur-yugānte kālena
grastāñ chruti-gaṇān yathā
tapasā ṛṣayo ’paśyan
yato dharmaḥ sanātanaḥ
At the end of every four yugas, the great saintly persons, upon seeing that the eternal occupational duties of mankind have been misused, reestablish the principles of religion.
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