The comprehensive Arabic dictionary by Nashwān bin Sa'īd al-Ḥimyarī, who completed this work in Egypt in Ramadan, 570 A.H./ March-April 1175 C.E. (see fol. 185).

The present copy (610 folios) is written in six different hands. The name of the sixth transcriber is given on fol. 465a as 'Abd al-Ghanī bin 'Abdallāh bin 'Uthman bin Shihāb al-Dīn al-Lāhūrī. It is slightly worm-eaten; a few pages of the original text are cancelled either partly or entirely, see for instance fols. 85, 88, 558, 559, etc. It bears occasional annotations and glosses on the margin.