question #1 Sahih al-Bukhari 352, Book 8, Hadith 4 : What does this narration imply about the simplicity of clothing during the time of the Prophet?

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 lifetime of the Prophet?”