Valmiki Ramayana Aranya Kanda Sarga 68 Shloka 13

राक्षसेश्वरः lord of the demons, रावणः Ravana, त्वत्प्रियाम् your beloved, जानकीम् Janaki, हृत्वा after carrying away, बडिशम् fish hook, गृह्य having picked up, झषवत् like the fish, क्षिप्रमेव quickly, विनश्यति will be destroyed.

Ravana, king of the demons, will perish soon for running away with your beloved Janaki just like a fish carrying away a fishhook (which causes its destruction).