Dr. Muhammad Mustafa al-Azami is Professor of Hadith Science at King Saud University, where he has taught since 1973. He obtained his Ph.D. in Islamic Studies from Cambridge University in 1967, and studied at al-Azhar University in Egypt and Dar-ul-Ulum in India. He is the author of numerous books and articles on early hadith. In 1980 he received the prestigious King Faisal Award for his research and presentations on the sunna.