Caitanya-caritāmṛta 9.202
rāvaṇa dekhiyā sītā laila agnira śaraṇa rāvaṇa haite agni kaila sītāke āvaraṇa
[raavana dekhiyaa seetaa laila agnira sharana raavana haite agni kaila seetaake aavarana]
Blended reading (Sanskrit + English inline)
rāvaṇa dekhiyā sītā laila agnira śaraṇa rāvaṇa haite agni kaila sītāke āvaraṇa
When Rāvaṇa came to kidnap mother Sītā and she saw him, she took shelter of the fire-god, Agni. The fire-god covered the body of mother Sītā, and in this way she was protected from the hands of Rāvaṇa.
My note
Source: vedabase.io