"Diseases of the Soul - 5: Prejudice (Asabiyyah)" addresses the destructive nature of prejudice (Asabiyyah) within the framework of Islamic teachings. This book explores the origins, manifestations, and consequences of Asabiyyah, which refers to the irrational loyalty or bias towards one's own group, whether it be based on race, tribe, nationality, or any other form of identity. Islamic teachings strongly condemn such prejudice as it leads to division, injustice, and moral corruption. Drawing from Quranic verses, Hadith, and the wisdom of Islamic scholars, the book provides an in-depth analysis of how Asabiyyah corrupts the soul and society. It also offers guidance on overcoming prejudice by embracing the universal values of justice, equality, and brotherhood in Islam. This fifth volume in the "Diseases of the Soul" series is essential for anyone seeking to purify their heart from biases and foster unity and harmony in accordance with Islamic principles.