Valmiki Ramayana Yuddha Kanda Sarga 114 Shloka 56
Original Shlokaशयनेषुमहार्हेषुशयित्वाराक्षसेश्वर ।।6.114.56।। इहकर्मात्प्रसुप्तोऽसिधरण्यांरेणुगुण्ठितः ।
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राक्षसेश्वर Lord of Rakshasas, महार्हेषु best beds, शयनेषु sleep, शयित्वा now lying, इह here, धरण्याम् on ground, रेणुगुण्ठितः covered with dust, कस्मात् where are you, प्रसुप्तः sleeping, असि you are
"O Lord of Rakshasas! Having slept on the best of beds, you are now lying here on the hard ground, body covered with dust. Where are you sleeping?"