Ramayana
यः शृणोति निरीक्षेद्वा स वध्यो भविता तव । भवेद्वै मुनिमुख्यस्य वचनं यद्यपेक्षसे ॥ 7-103-13 ॥
"Whoever hears or looks upon it shall become one to be slain by you — so it must be, if you heed the word of the foremost of sages."
english translation