Valmiki Ramayana Kishkindha Kanda Sarga 4 Shloka 1

ततः then, कृत्यवान् who has done his duty, हनुमान् Hanuman, इति thus, तद्वचः his words, श्रुत्वा having heard, मधुरसम्भाषं च and sweet talk, प्रहृष्टः glad, मनसा at heart, सुग्रीवम् to Sugriva, गतः about

After listening to the sweet words of Lakshmana, Hanuman, having done what he had to do felt happy and thought of Sugriva. Lakshmana speaks to Hanuman the purpose of their arrival at Rishyamuka -- Hanuman takes Rama and Lakshmana on his shoulders to Sugriva