Mahabharata Drona Parva Chapter 202:2

Mahabharata Drona Parva (Drona-vadha Parva) Chapter 202:2 The Ordainer of the three worlds, he is the sole refuge of the three worlds. Incapable of being vanquished, he is the protector of the universe, and abode (the necessity of) birth, decay, and death. The Soul of knowledge, incapable of being compassed by knowledge, and the highest of all knowledge he is unknowable. Through grace, he giveth unto his worshippers the boons they desire. That Lord hath for his companions celestial beings of diverse forms, some of whom are dwarfs, some having matted locks, some with bald heads, some with short necks, some with large stomachs, some with huge bodies, some possessed of great strength and some of long ears. All of them, O Partha, have deformed faces and mouths and legs and strange attires. That Supreme Deity, called Mahadeva, is worshipped by followers that are even such. Even that Siva, O son, endued with such energy, proceedeth through kindness, in advance of thee. In that fierce battle, O Partha, making the very hair stand on end, who else, O Arjuna, than the divine Maheswara, that foremost of all bowmen, that Deity of divine form, could even in imagination venture to vanquish that force which was protected by those great smiters and bowmen, viz., Aswatthaman and Karna and Kripa? None can venture to stay before the warrior that hath Maheswara walking before him. There is no being in the three worlds that is equal to him. At the very scent of the enraged Mahadeva, foes in battle tremble and become senseless and fall in large numbers. For this, the gods in heaven adore and bow to him. Those men in this world and those other men of pious conduct, that devoutly worship the boon-giving, divine, and auspicious Rudra, obtain happiness here and attain to the highest state hereafter.