One man was publicly offending Ghiyāth ad-Dīn Abu’l-Fatḥ ʿUmar ibn Ibrāhīm al-Khayyām Nīshāpūrī, commonly known as Omar Khayyám: You’re an atheist! You’re drinker! Almost a thief!
Omar just smiled in response.
Another man dressed in silk trousers.. watching that scene, asked Omar: How can you tolerate such offences? Do you not feel hurt?
Omar smiled again and told: Come along with me.
The man followed him to a very dusty lumber-room. Omar lighted the lantern and began rummaging in a trunk, where he found a completely worthless tattered robe. He threw it to man and said: Try it, will match you.
The man took the robe, looked at it and resented: What are these dirty rags for? I am well dressed.. you must be crazy! – and threw the robe back.
You see – Omar said – you did not want to try the rags. Similarly, I did not want to try those dirty words that man threw on me. To be aggrieved by such offences, means to try on rags someone throw us.
Source Credits: Inspirational Stories