In Valmiki's Ramayana, Aranya Kanda, Sarga 43, Verse 9, Sita asks Rama for the deer : "आर्यपुत्राभिरामोऽसौ मृगो हरति मे मनः। आनयैनं महाबाहो क्रीडार्थं नो भविष्यति।।" The English translation is: "O nobleman's son, that delightful deer is stealing My heart. O dextrous one, bring it round; it will be our plaything,"