كتاب الأربعين في أصول الدين (Kitab al-Arba'in fi Usul al-Din)

Al-Ghazali's al-Arbaun fi Usul al-Din is essentially a concise version of his Ihya Ulum al-Din. Scholars often recommend it to those who find the Ihya too lengthy, as nearly three-quarters of its chapters mirror those of the larger work. It offers a distilled presentation of the Ihya's core themes in a more accessible form.

Author: al-Ghazali
Publisher: Dar al-Minhaj