Skandapurana 16.21.12

16.21.12

pratyūṣaśca prabhāsaśca vasavoṣṭau prakīrtitāḥ ..
āpasya putrā vaidaṃḍyaḥ śramaḥ śānto dhvanistathā ... .. 12 ..

Pratyūṣa, and Prabhāsa are celebrated as the eight Vasus.
The sons of Āpa were Vaidaṇḍya, Śrama, Śānta, and Dhvani;