Mudgalapurana 3.32.19

3.32.19

punaścakāra tadvat sa kadācit pāpamulbaṇam |
kṛṣṇapakṣe caturthyāṃ ca sa mamārodaye vidhoḥ ||

Later on, in the same way, he once committed a terrible sin; / and on the fourth [lunar day] in the dark fortnight, at the rise of the moon, he died.