Sahih Muslim
The Book Pertaining to Clothes and Decoration (Kitab Al-Libas wal-Zinah)
Book Number: 024 / Hadith Number: 5201
Abu Huraire reported that he saw a person whose lower garment bad been trailin. and he was striking the ground with his foot (conceitedly). He was the Amir of Bahrain and it was being said: Here comes the Amir, here comes the Amir. He (Abu Huraira) reported that Allah's Messenger (may peace be upon him) said: Allah will not look toward him who trails his lower garment out of pride.