In the first year of the reign of Belshazzar over Babylon, Daniel had a dream, and visions passed through his mind as he lay on his bed. He wrote down the dream, and this is the summary of his account.
Jewish Publication Society of America Version (JPS1917) - Daniel 7:1 >In the first year of Belshazzar king of Babylon Daniel had a dream and visions of his head upon his bed; then he wrote the dream and told the sum of the matters.