The powerful prayer for protection, Narasimha Kavacha Stotram is described by Prahlada Maharaja in the Brahmanda Purana, which states:
गर्जंतं गर्जयंतं निजभुजपटलं स्फोटयंतं
हरंतं दीप्यंतं तापयंतं दिवि भुवि दितिजं क्षेपयंतं रसंतं ।
कृंदंतं रोषयंतं दिशिदिशि सततं संभरंतं हरंतं ।
विक्षंतं घूर्णयंतं करनिकरशतैर्दिव्यसिंहं नमामि ॥