Skandapurana 6.3.13.42

6.3.13.42

kāpilaṃ prathamaṃ viddhi prājāpatyaṃ dvitīyakam .
brāhmaṃ saumyaṃ ca sāvitraṃ bārhaspatyaṃ prabhāsakam .. 13.42 ..

Know the first to be the Kāpila, the second the Prājāpatya, / the Brāhma, the Saumya, the Sāvitra, the Bārhaspatya, and the Prabhāsaka;