The Great Epic of the Bhārata dynasty 7.173.101

7.173.101

dhanyaṃ yaśasyamāyuṣyaṃ puṇyaṃ vedaiśca saṃjñitam |
devadevasya te pārtha vyākhyātaṃ śatarudriyam || 101 ||

This illustrious God proceedeth in advance of thee in battle. It is he who gave thee those weapons with which thou didst slay the Danavas. The hymn approved of the Vedas, and called Sata-Rudriya, in honour of that God of gods, that excellent, famous, life-enhancing, and sacred hymn, has now, O Partha, been explained to thee. This hymn of four divisions, capable of accomplishing every object, is sacred, destructive of all sins, and competent to drive away all stains and to kill all sorrows and all fears. The men that always listen to this succeeds in vanquishing all his foes and is highly respected in the region of Rudra. The person who always attentively reads or listens to the recitation of this excellent and auspicious account, appertaining to battle, of the illustrious Deity, and he worships with devotion that illustrious Lord of the universe, obtaineth all the objects of desire, in consequence of the three-eyed God being gratified with him. Go and fight, O son of Kunti, defeat is not for thee, that hast Janardana. on thy side for thy adviser and protector.'