Sahih Muslim 91c

Ibn Mas‘ūd (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Anyone has an atom's weight of arrogance in his heart will not enter Paradise." This Hadīth conveys a stern warning, which requires a detailed explanation based on Shariah evidence. If one's arrogance involves rejection of the truth and hatred towards it, this one is a disbeliever who will abide eternally in Hellfire and will never enter Paradise.

Allah, the Exalted, said: {That is because they disliked what Allah revealed, so He rendered worthless their deeds} [Sūrat Muhammad: 9]. If one's arrogance is about behaving haughtily and proudly towards people but does not prevent him from worshiping Allah, he will be subject to the warning mentioned in the Hadīth and thus will not enter Paradise with the first batch admitting it without being punished beforehand.

When the Prophet (may Allah's peace and blessings be upon him) said this Hadīth, a man said: "O Messenger of Allah, what if one likes his clothes and shoes to look good, would this be an act of arrogance?" So the Prophet (may Allah's peace and blessings be upon him) said: "Allah is beautiful and He loves beauty", meaning that He is beautiful in His essence, actions, and attributes.

Everything comes from Allah, the Almighty, is beautiful and not ugly in the least. "He loves beauty", means that He loves man to look beautiful in his clothes, shoes, body, and all his affairs. That is because beautification attracts people to the person and makes them love him; unlike ugliness in one's hair or clothes.