Valmiki Ramayana Kishkindha Kanda Sarga 25 Shloka 52

महाबलः mighty, काकुत्स्थ: Kakutstha, दीनेन by the piteous, सुग्रीवेण with Sugriva, इव as though, समानशोकः equally sad, दीनः pitiable one, भूत्वा was equally, प्रेतकार्याणि funeral rites, अकारयत् directed.

Mighty Rama, who was equally sorrowful and pitiable as Sugriva, directed the performance of funeral rites.