Skandapurana 7.13.p38

7.13.p38

Vyāsa said:
How did that celestial dwelling, Puriścandra,
become the secret abode of the Great Lord? Relate that, O one of steadfast vows.
Sanatkumāra said:
Here I shall relate to you an ancient event, O wise one,
hearing which even an evildoer may attain the supreme destination.
Formerly there were two seers of great soul, Nara and Nārāyaṇa;
for the sake of the gods' purpose, it is said, they committed the slaying of a brahmin.