Sheikh Dr. Abd al-Aziz Al-Harbi presents to you a collection of his Friday sermons from the pulpits over the past twenty years of his career in preaching. He has titled this collection of sermons "Between the Two Shells" because most of the mosques in Makkah are located between two or more shells, that is, between two or more mountains. May Allah benefit students of knowledge with this distinguished collection of Friday sermons.