Quran and hadith on arrogance. Arrogance is a great spiritual disease of the heart. We should never be arrogant. Boasting is a problematic behaviour that universally evokes objection and is considered a spiritual disease. No one likes a boaster, the person who walks with a swank and swagger. Quran on Arrogance Allah Himself reveals His dislike of bragging: Allah does not love the arrogant and boasting ones. وَلَا تُصَعِّرْ…