Valmiki Ramayana Yuddha Kanda Sarga 60 Shloka 39
Original Shlokaतंशैलशृङ्गैर्मुसलैर्गदाभिर्वृक्षैस्तरैर्मुद्गरमुष्टिभिश्च । सुखप्रसुप्तंभुविकुम्भकर्णंरक्षांस्युदग्राणितदानिजघ्नुः ।।6.60.39।।
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तदा then, उदग्राणि exited, रक्षांसि Rakshasas, भुवि on the ground, सुखप्रसुप्तम् happily sleeping, तंकुम्भकर्णम् that Kumbhakarna, शैलशृङ्गैः with rocks and trees, मुसलैः bars, गदाभिः maces, मुद्गरमुष्टिभिःच with fists, निजघ्नुः not got up.
Then the excited Rakshasas could not wake up Kumbhakarna happily sleeping on the ground in spite of hitting with rocks and trees and their fists.