Shiva Purana
चतुर्थस्य तु सावर्णेर्ऋषीन्सप्त निबोध मे ॥ द्युतिर्वसिष्ठपुत्रश्च आत्रेयस्सुतपास्तथा ॥ ५५ ॥
Listen to me about the seven sages of the fourth Savarṇi Dyuthi the son of Vasishta and Atreya and Sutapa.
english translation
caturthasya tu sAvarNerRSInsapta nibodha me ॥ dyutirvasiSThaputrazca AtreyassutapAstathA ॥ 55 ॥
hk transliteration by Sanscript