One verse

Srimad Bhagavatam 12.6.66

12.6.66

याज्ञवल्‍क्यस्ततो ब्रह्मंश्छन्दांस्यधिगवेषयन् । गुरोरविद्यमानानि सूपतस्थेऽर्कमीश्वरम् ॥ ६६ ॥

yājñavalkyas tato brahmaṁś chandāṁsy adhi gaveṣayan guror avidyamānāni sūpatasthe ’rkam īśvaram

yājñavalkyaḥ
Yājñavalkya
tataḥ
thereafter
brahman
O brāhmaṇa
chandāṁsi
mantras
adhi
additional
gaveṣayan
seeking out
guroḥ
to his spiritual master
avidyamānāni
not known
su-upatasthe
he carefully worshiped
arkam
the sun
īśvaram
the powerful controller

My dear brāhmaṇa Śaunaka, Yājñavalkya then desired to find out new yajur-mantras unknown to even his spiritual master. With this in mind he offered attentive worship to the powerful lord of the sun.