One verse

Srimad Bhagavatam 4.1.40

4.1.40

ऊर्जायां जज्ञिरे पुत्रा वसिष्ठस्य परन्तप । चित्रकेतुप्रधानास्ते सप्त ब्रह्मर्षयोऽमला: ॥ ४० ॥

urjayam jajnire putra vasisthasya parantapa citraketu-pradhanas te sapta brahmarsayo ’malah

urjayam
in Urja
jajnire
took birth
putrah
sons
vasisthasya
of the great sage Vasistha
parantapa
O great one
citraketu
Citraketu
pradhanah
headed by
te
all the sons
sapta
seven
brahma-rsayah
great sages with spiritual knowledge
amalah
without contamination.

The great sage Vasistha begot in his wife, Urja, sometimes called Arundhati, seven spotlessly great sages, headed by the sage named Citraketu.