Sahih Bukhari Volume 001, Book 008, Hadith Number 348.

Narated By Muhammad bin Al-Munkadir : Once Jabir prayed with his Izar tied to his back while his clothes were Lying beside him on a wooden peg. Somebody asked him, "Do you offer your prayer in a single Izar?" He replied, "I did so to show it to a fool like you. Had anyone of us two garments in the life-time of the Prophet?"