Shiva Purana
काश्यपोप्युशनाश्चैव च्यवनोऽथ बृहस्पतिः ॥ तेपि तेनैव मार्गेण गमिष्यन्ति शिवालयम् ॥ १७॥
They are Kāśyapa, Uśanas, Cyavana and Bṛhaspati. They too will go to the abode of Śiva through the same path.
english translation
kAzyapopyuzanAzcaiva cyavano'tha bRhaspatiH ॥ tepi tenaiva mArgeNa gamiSyanti zivAlayam ॥ 17॥
hk transliteration by Sanscript