Valmiki Ramayana Sundara Kanda Sarga 33 Shloka 17
Original Shlokaसमा द्वादश तत्राहं राघवस्य निवेशने।।5.33.17।। भुञ्जाना मानुषान्भोगान्सर्वकामसमृद्धिनी।
1 source checked for this shloka
अहम् I am, तत्र there, राघवस्य Rama's, निवेशने the abode, मानुषान् mortal, भोगान् pleasures, भुञ्जाना experiencing, सर्वकामसमृद्धिनी all kinds of pleasures provided, द्वादश twelve, समाः years.
"I enjoyed worldly pleasures in abundance for twelve years at Rama's abode.