Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 41
Sanskrit:
चित्रकेतु: सुरोचिश्च विरजा मित्र एव च ।उल्बणो वसुभृद्यानो द्युमान्शक्त्यादयोऽपरे ॥ ४१ ॥
ITRANS:
citraketuḥ surociś cavirajā mitra eva caulbaṇo vasubhṛdyānodyumān śakty-ādayo ’pare
Translation:
The names of these seven sages are as follows: Citraketu, Suroci, Virajā, Mitra, Ulbaṇa, Vasubhṛdyāna and Dyumān. Some other very competent sons were born from Vasiṣṭha’s other wife.
Purport:
Ūrjā, who is sometimes known as Arundhatī and was the wife of Vasiṣṭha, was the ninth daughter of Kardama Muni.