Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/31/7

अथ ज्ञात्वा गतां लंकां सीतां कपिवराननात् ।। सीताचूडामणिं प्राप्य मुमुदे सोऽति राघवः ।। ७ ।।

sanskrit

On getting the crest-jewel of Sītā and on knowing from the excellent monkey that she was in Laṅkā, Rāma rejoiced much.

english translation

atha jJAtvA gatAM laMkAM sItAM kapivarAnanAt || sItAcUDAmaNiM prApya mumude so'ti rAghavaH || 7 ||

hk transliteration by Sanscript