Valmiki Ramayana Yuddha Kanda Sarga 42 Shloka 6
Original Shlokaराघवःसहसैन्येनमुदितोनामपुप्लुवे । लङ्कांददर्शगुप्तांवैसर्वतोराक्षसैर्वृताम् ।।6.42.6।।
1 source checked for this shloka
राघवः Raghava, मुदितो happily, सहसैन्येन with army, पुप्लुवे near, लङ्कां Lanka, सर्वतो all over, राक्षसैर्वृताम् fully filled with Rakshasas, गुप्तांवै protected, लङ्कां Lanka, ददर्श witnessed.
Raghava accompanied by the army happily went near and witnessed Lanka filled with Rakshasas all over.