The text deals with Sufism and the uttermost importance of performing religious observances and of the attributes of praiseworthy and improper characteristics. It is probably derived from the Kitāb al-Arba‘īn fī uṣūl al-dīn by Abu Ḥāmid al-Ghazālī.
Other notes:
All the pages have become loose from the binding.
Item 1 - Title in Native script:
[كتاب الأربعين في أصول الفقه]
Item 1 - Title in Roman script:
[Kitāb al-Arba‘īn fī uṣūl al-dīn]
Item 1 - Title in English script:
[Kitāb al-Arba‘īn fī uṣūl al-dīn]
Item 1 - Author:
Abu Ḥāmid Muḥammad ibn Muḥammad ibn Muḥammad al-Ghazālī (d. 505 H/1111 AD)