This is a page from an early 16th century Persian copy of the Divan of Hafiz or Hafez. His full name was Khwāja Šamsu d-Dīn Muḥammad Hāfez-e Šhīrāzī but is known under his pen name of Hafez.
His works are still taught today and were an influence of Sufi mysticism since the 14th century. Some of his works can be seen on Poet Seers.com and Black Cat Poems. This picture is currently in the Freer and Sackler Gallery.