Kitab Ash-shifa bi Ta'rif Huquq al-Mustafa, (Arabic: كتاب الشفاء بتعريف حقوق المصطفى‎, The Book of Healing by the Recognition of the Rights of or News of the Chosen One), of Qadi 'Iyad (d. 544H / 1149CE) is perhaps the most frequently used and commented upon handbook in which Muhammad's life, his qualities and his miracles are described in every detail.