Al-Iḥtijāj
Al-Iḥtijāj ʿalā Ahl al-Lijāj (Arabic:الإحتجاج على أهل اللجاج), best known as al-Iḥtijāj (الإحتجاج ) is a book in Arabic written by Abu Manṣūr, Ahmad b. Ali al-Ṭabrisi, the scholar of 6th/12th century. The book contains the arguments presented by the Prophet (s) and the infallible Imams (a) and some of their followers against their opponents form various sects and religions.