 मन्त्रैरभिष्टुतं पुण्यमध्वरेषु द्विजातिभिः।हविर्धानेषु यस्सोममुपहन्ति महाबलः।। 
 The mighty Ravana  defiled the sacred Soma juice, worthy of oblations, extracted by Brahmins by chanting mantras in scrifices. 