Driven by destiny, Sita sent Rama in pursuit of him. And Rana (too) with a view to please her, soon taking up his bow and instructing Lakshmana to protect her, went in pursuit of that deer.
चोदयामास तस्यार्थे सा रामं विधिचोदिता। रामस्तस्याः प्रियं कुर्वन् धनुरादाय सत्वरः॥ रक्षार्थे लक्ष्मणं न्यस्य प्रययौ मृगलिप्सया।