Verse 11

आसीदभ्युदितज्ञानस्तपोराशिरुदारधीः ।मुनिर्दीर्घतपा नाम तपो मूर्तमिवापरम्

In plain words

--there dwelt a sage named Dīrghatapā, in whom jñāna had arisen, a very mass of tapas, of noble understanding, as though he were tapas embodied in a second form.