इत्युक्त: प्राह देवान् स न शक्तोडस्मि महीगतान् । दग्धुं तपो हि क्षीयेन्मे न शक््यामीति पार्थिव
ity uktaḥ prāha devān sa na śakto ’smi mahī-gatān | dagdhuṃ tapo hi kṣīyen me na śakyāmīti pārthiva ||
इत्युक्तः स देवान् प्राह— “पार्थिव! अहं महीगतान् असुरान् दग्धुं न शक्तोऽस्मि। दग्ध्वा हि मे तपः क्षीयेत; तस्मादेतत् कर्म ममाशक्यम्।”
भीष्म उवाच
Even when urged to use destructive power, an ascetic must guard tapas; restraint and preservation of spiritual merit can be a higher duty than punitive action.
After being requested by the gods to burn the earth-dwelling asuras, the sage (as indicated by the surrounding context) declines, explaining to the king that such an act would diminish his austerity, and so he is unable to undertake it.