Kalikapurana 2.73

Kālikāpurāṇa 2.73

tatastasmāt samabhavaṃstoyadāḥ śabdasaṃyutāḥ |
samvartaśca tathāvartaḥ puṣkaro droṇa eva ca |
garjantaścātha muñcantastoyāni dvijasattamāḥ || 30 ||