Atharvavedaparishishta 63.3.8

63.3.8

yugānta iva jānīyāt patriviṣṭeṣu pañcasu | brahmakṣatriyaviṭśūdrān hanyāt pratipadādiṣu ||

One should know it as like the end of the age when five are surrounded by halos. / On the first lunar day and following, it destroys Brahmins, kṣatriyas, vaiśyas, and śūdras;