He is Sheikh: Hijazi bin Muhammad bin Sharif Al-Masri Al-Salafi. He was born in the year 1375 AH. He began seeking knowledge of hadith at the age of eleven and attended Sheikh Muhammad Najeeb Al-Mutai’i’s lessons in Shafi’i jurisprudence. He graduated from the College of Al-Alsun, Spanish Department, and was first in his class in all its years except for the last year, where he was second. He spent a long time working in the Al-Musfi library to work hard in his studies. He used to ask during the day and work at night to support himself. Sheikh Abu Ishaq studied with Sheikh Al-Albani, may God have mercy on him, through his books and learned from their knowledge. Sheikh Al-Albani praised him when he was asked who would succeed him in the scientific method, so he started with Sheikh Muqbil bin Hadi, then with Al-Huwaini.
Sheikh Al-Huwaini became famous for the science of hadith to the point that he became one of the few hadith scholars who could be relied upon in the sciences of hadith and the sciences of grading, authentication, and weakening, and this is attested by all of the senior scholars in this field who lived with him.
In this application, more than one hundred written lessons and lectures by Sheikh Al-Huwaini have been collected in comprehensive format, which can be copied with great ease. The application works without the Internet, and its size is only 10 MB.