Description of the length of Qamees and the Sleeves, the end of the Turban, the Prohibition of wearing long Garments out of Pride and the undesirability of wearing them without Pride

Riyad-us-Saliheen 792

Abu Hurairah (May Allah be pleased with him) reported: Messenger of Allah (PBUH) said, "On the Day of Resurrection, Allah will not look at him who trails his lower garment out of pride."

[Al-Bukhari and Muslim]

A disregard of Allah's Favours and gifts means ungratefulness which is essentially manifested in a haughty attitude. It is also a sign of arrogance that one wears a dress with the hem trailing on the ground.