Valmiki Ramayana Sundara Kanda Sarga 56 Shloka 21
Original Shlokaतमारुरोह हनुमान् पर्वतं पवनात्मजः। रामदर्शनशीघ्रेण प्रहर्षेणाभिचोदितः।।5.56.21।।
1 source checked for this shloka
पवनात्मजः son of the Windgod, हनुमान् Hanuman, रामदर्शनशीघ्रेण anxious to see Rama soon, प्रहर्षेण with joy, अभिचोदितः prompted, तं पर्वतम् that mountain, आरुरोह ascended.
Anxious to see Rama soon, the son of the Windgod ascended the mountain happily.