One verse

Srimad Bhagavatam 12.6.47

12.6.47

क्षीणायुष: क्षीणसत्त्वान् दुर्मेधान् वीक्ष्य कालत: । वेदान्ब्रह्मर्षयो व्यस्यन् हृदिस्थाच्युतचोदिता: ॥ ४७ ॥

kṣīṇāyuṣaḥ kṣīṇa-sattvān durmedhān vīkṣya kālataḥ vedān brahmarṣayo vyasyan hṛdi-sthācyuta-coditāḥ

kṣīṇa-āyuṣaḥ
their life span diminished
kṣīṇa-sattvān
their strength diminished
durmedhān
of less intelligence
vīkṣya
observing
kālataḥ
by the effect of time
vedān
the Vedas
brahma-ṛṣayaḥ
the chief sages
vyasyan
divided up
hṛdi-stha
sitting within their hearts
acyuta
by the infallible Personality of Godhead
coditāḥ
inspired

Observing that people in general were diminished in their life span, strength and intelligence by the influence of time, great sages took inspiration from the Personality of Godhead sitting within their hearts and systematically divided the Vedas.