Al-Hadi in the seven readings that one of the first sciences to which the minds of the scholars turned, the sciences of the Holy Qur'an, especially the science of Qur'anic readings, in order to control, restrict and preserve them, and that the book «Al-Hadi» by Muhammad ibn Sufyan al-Qayrawani is one of the oldest books found in the science of readings, as it is in the ranks of many books in this science such as (facilitation, title, adequacy, insight, al-Qased, al-Rawda, al-Mujtaba, al-Ticket, al-Irshad, and al-Saba'a,  Al-Mustaqir) and other great resources from which Ibn al-Jazari derived, and therefore is one of the origins of the book «Publishing» by Ibn al-Jazari, as it highlighted the role of Ibn Sufyan al-Qayrawani in the science of readings, and his status among the imams classified in this science in the fourth and fifth centuries Hijri. This book is the work of Dr. Yahya Al-Ghawtani, a specialist in the science of readings, and appeared in the most pompous and accurate editing.