Shivapurana 3.31.68

Śivapurāṇa (complete text) 3.31.68

tau śāṇḍilyamunestāta nideśānniyamasthitau |
pradoṣe cakratuḥ śambhoḥ pūjāṃ kṛtvā vrataṃ śubham ||