Unidentified treatise on prosody by Maḥmūd ibn ʻUmar al-Najātī al-Nīsābūrī

Unnamed work on prosody by Maḥmūd ibn ʻUmar al-Najātī al-Nīsābūrī.
Manuscript.
Persian.
Title from flyleaf: "ʻAruz̤-i Jāmī, 934."
Flyleaf: "al-faqīr istiṣaḥḥahu Mīr Muḥammad ʻĀrif ibn-i Jamīl [illegible] ʻafá ʻanh."
At end of text by a much later hand: "934 Q."
Written in Iran?
Paper: thin, light cream-colored paper; chain lines run vertically and horizontally randomly throughout; black ink with rubrication; folio 1b elaborately decorated in blue and gold; writing enclosed in thin gold borders edged in black; catchwords on rectos; two lines of Ottoman Turkish poetry on endpaper.
Nastaʻliq scrpt; 13 lines in written area 11.8 x 4.8 cm.
Folio 1b-98b.
Library of Congress Persian manuscript, 69/50.
Newer dark red leather envelope binding with matching gold medallions front and back.
Also available in digital form on the Library of Congress website.