Abu Sa'id al-Khudri said, “I visited the Prophet and saw him praying on a reed mat on which he was prostrating himself.” He said, “And I saw him praying in a single garment with part over his shoulder.”
Muhammad b. al-Munkadir said that Jabir led them in prayer in lower garment which he had tied at the nape of his neck, his clothes being placed on the clothes-stand. Someone said to him, “You are praying in a single garment.” He replied, “I did that only that a fool like you might see me. Which of us had two garments in the time of God’s Messenger?”
Abu Huraira reported God’s Messenger as saying, “When any of you prays he should not place his sandals at his right or at his left so as to be at the right of someone else, unless no one is at his left, but should place them between his feet.” A version has, “or pray with them on.”
Abu Dawud transmitted it and Ibn Majah transmitted something to the same effect.