 एषोऽस्त्रान् विविधान्वेत्ति त्रैलोक्ये सचराचरे।नैनमन्य: पुमान्वेत्ति न च वेत्स्यन्ति केचन।। 
 This Viswamitra knows the use of various kinds of weapons which no one knows among the animate and the inanimate in the three worlds. Nor will any one even know in future. 