Atharvavedaparishishta 63.2.2

63.2.2

viṣame vigatasnehe vidhvastakaluṣābhrake | triṣu saṃdhiṣu bhūyiṣṭhaṃ darśanaṃ copagacchati ||

irregular, devoid of gloss, with broken and foul clouds, / and appearing mostly at the three twilight junctions;