Valmiki Ramayana Kishkindha Kanda Sarga 14 Shloka 11
Original Shlokaमम दर्शय सुग्रीव वैरिणं भ्रातृरूपिणम्। वाली विनिहतो यावद्वने पांसुषु वेष्टते4.14.11।।
1 source checked for this shloka
सुग्रीव O Sugriva, भ्रातृरूपिणम् in the form of brother, वैरिणम् an enemy, मम to me, दर्शय वाली show Vali, विविहतः killed, वने in the forest, पांसुषु in the dust, यावत् चेष्टते before he rolls down.
'O Sugriva show me your enemy,who is in the guise of your brother.He will be killed. He will roll down in the dust of the forest.