One verse

Srimad Bhagavatam 11.3.43

11.3.43

श्रीआविर्होत्र उवाच कर्माकर्मविकर्मेति वेदवादो न लौकिक: । वेदस्य चेश्वरात्मत्वात् तत्र मुह्यन्ति सूरय: ॥ ४३ ॥

śrī-āvirhotra uvāca karmākarma vikarmeti veda-vādo na laukikaḥ vedasya ceśvarātmatvāt tatra muhyanti sūrayaḥ

śrī-āvirhotraḥ uvāca
the sage Āvirhotra said
karma
the execution of duties prescribed by scripture
akarma
failure to perform such duties
vikarma
engagement in forbidden activities
iti
thus
veda-vādaḥ
subject matter understood through the Vedas
na
not
laukikaḥ
mundane
vedasya
of the vedas
ca
and
īśvara-ātmatvāt
because of coming from the Personality of Godhead Himself
tatra
in this matter
muhyanti
become confused
sūrayaḥ
(even) great scholarly authorities

Śrī Āvirhotra replied: Prescribed duties, nonperformance of such duties, and forbidden activities are topics one can properly understand through authorized study of the Vedic literature. This difficult subject matter can never be understood by mundane speculation. The authorized Vedic literature is the sound incarnation of the Personality of Godhead Himself, and thus Vedic knowledge is perfect. Even the greatest learned scholars are bewildered in their attempts to understand the science of action if they neglect the authority of Vedic knowledge.