Valmiki Ramayana Sundara Kanda Sarga 58 Shloka 19
Original Shlokaस चाप्यन्तर्हितः शैलो मानुषेण वपुष्मता। शरीरेण महाशैलः शैलेन च महोदधौ।।5.58.19।।
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सः he, शैलः mountain, मानुषेण in human form, वपुष्मता अन्तर्हितः concealed, महाशैलः huge mountain, शैलेन in mountain form, शरीरेण च in the form, महोदधौ great ocean, अन्तर्हितः remained hidden.
"Then the huge mountain in human form concealed as huge mountains remain hidden in the ocean.