Ramayana
कस्यचित्त्वथ कालस्य मित्रावरुणसम्भवः । वसिष्ठस्तेजसा युक्तो जज्ञे इक्ष्वाकुदैवतम् ॥ 7-57-7 ॥
Then, after some time, Vasishtha, sprung from Mitra and Varuna and endowed with splendor, was born to be the chosen priest of the Ikshvakus.
english translation