Umar bin al-Khattab travels, and the story goes that he was riding his camel and he had a servant, and they divided their time: for an hour ‘Umar bin al-Khattab would be riding the camel, the next hour his servant would be riding the camel, the third hour both of them would be walking so that the camel could rest.
So, as the story goes, when ‘Umar bin al-Khattab was on the gates of Jerusalem it was the turn of his servant to ride camel and ‘Umar to hold it. And he was dressed in this thobe that had fourteen patches in it.
Abu Ubaydah went to ‘Umar bin al-Khattab and he was very concerned, ‘what will the Romans think?’ Look at our khalifa; he’s holding the camel and the servant is riding it, and he has these cheap clothes on him. So he goes to ‘Umar bin al-Khattab and said, “We are in a land where they have a lot of show, and they judge people according to the way they look. Ameer al-Mu’mineen, why didn’t you dress in something better?”
Umar bin al-Khattab punched him in his chest and he said “i would expect to hear that from somebody else, Abu Ubaydah. We are a people whom Allah honored through islam, and if we seek honor in any other way, Allah will dishonor us.”
Our honor did not come because of our technology, it did not come because of our business, it did not come because of our clothes, it did not come because of our science; it came because of Islam.
– Imam Anwar al Awlaki (رحمه الله)