Ramayana
लोकहिंसाविहाराणांरक्षसांकामरूपिणाम् । कुर्वतामपिपापानिनैवकार्यमशोभनम् ॥ ६-११६-४७
"Rakshasas by nature are cruel in their deeds and can assume any form according to their will. No sinful actions to be done even if they do sinful actions." ॥ 6-116-47॥
english translation
lokahiMsAvihArANAMrakSasAMkAmarUpiNAm । kurvatAmapipApAninaivakAryamazobhanam ॥ 6-116-47
hk transliteration by Sanscript