When I turned to see who was talking, I saw that it was Rasoolullah sallallahu alaihe wasallam. I said, "O' Rasoolullah, this is a simple lungi, how can one become proud, and it is necessary to look after it (keep it clean)?"
Rasoolullah sallallahu alaihe wasallam replied, "If you see no benefit in it, your following me has not ceased."
While Rasoolullah sallallahu alaihe wasallam was telling me this, I saw that his lungi reached till half his him."
Arabic : Book 18, Hadith 120