Greetings Indologists,

Can someone point me towards the source of this popular prayer to Kalaratri? Is it extracted from any historical scripture or was it authored more recently?

एकवेणी जपाकर्णपूर नग्ना खरस्थिता
लम्बौष्ठी कर्णिकाकर्णी तैलाभ्यक्तशरीरिणी ॥
वामपादोल्लसल्लोहलताकण्टकभूषणा
वर्धनमूर्ध्वजा कृष्णा कालरात्रिर्भयङ्करी ॥

Sincerely,

Westin Harris
Ph.D. Candidate
Study of Religion 
University of California, Davis
The Robert H. N. Ho Family Foundation Program in Buddhist Studies

Sarva Mangalam.