I recently came across these lines on Wikipedia. I am not sure about the authenticity of this information, but was curious. "Varahi Tantra says that in the age of Kali yuga, most stotras are cursed by Parashurama and hence are ineffective. While listing the ones which are free from this curse and hence suitable during Kali Yuga, it is said, "Gita of the Bhishma Parva, Vishnu Sahasranama of Mahabharata and Chandika Saptashati' (Devi Mahatmyam) are free from all Doshas and grant fruits immediately in Kali Yuga." Does anyone know the legend behind this? What are the stotras that were cursed by Sage Parashurama and what is the legend behind that?