Matsyapurana 144.59

144.59

vidrāvya sarvabhūtāni cacāra vasudhāmimām
mānavasya tu vaṃśe tu nṛdevasyeha jajñivān //

King Pramati was born of Viṣnu's part in Manu's family and was famous as Chândramasa He roamed about earth for twenty years and killed all the wicked men in his 32nd year After annihilating the greater portion of the world with violence when only a few survivors the propagators of the future race, remained, the king with all his army attained final bliss in Samâdhi between the sacred rivers Ganges and the Yamunâ—59 63