Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 5
Sanskrit:
वाल्मीकिश्च महायोगी वल्मीकादभवत्किल ।अगस्त्यश्च वसिष्ठश्च मित्रावरुणयोऋर्षी ॥ ५ ॥
ITRANS:
vālmīkiś ca mahā-yogīvalmīkād abhavat kilaagastyaś ca vasiṣṭhaś camitrā-varuṇayor ṛṣī
Translation:
By the semen of Varuṇa, the great mystic Vālmīki took birth from an anthill. Bhṛgu and Vālmīki were specific sons of Varuṇa, whereas Agastya and Vasiṣṭha Ṛṣis were the common sons of Varuṇa and Mitra, the tenth son of Aditi.