Ibn Mas'ud (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Whoever has even a mustard seed's weight of arrogance in his heart will not enter Paradise." A man asked, "A person likes that his clothes and shoes are good. (Is this also arrogance?)" The Prophet (peace and blessings be upon him) replied: "Indeed, Allah is beautiful and loves beauty. Arrogance means rejecting the truth and looking down on people." Narrated by Muslim.