Valmiki Ramayana Yuddha Kanda Sarga 49 Shloka 17
Original Shlokaयथैवमांवनंयान्तमनुयातोमहाद्युतिः । अहमप्यनुयास्यामितथैवैनंयमक्ष्यम् ।।6.49.17।।
1 source checked for this shloka
महाद्युतिः glowing in brightness, वनम् forest, यान्तम् travelling, माम् me, यथैव with me, अनुयातः followed, तथैव in the same way, अहमपि I will also, एनम् in that way, यमक्ष्यम् abode of death, अनुयास्यामि will follow you.
"This Lakshmana glowing in brightness, travelled with me following me in the forest. In the same way I shall follow him to the abode of death."