We went forward with God’s Messenger, and when we reached Dhat ar-Riqa‘ we came to a shady tree which we left for him. One of the polytheists came along and seeing the sword of God’s Messenger hanging on a tree he took it, drew it from the scabbard and said to him, "Are you afraid of me?” On being told that he was not, he asked, “Who will protect you from me?” He replied, “God will protect me from you.” Then the companions of God’s Messenger threatened him, and he sheathed the sword and hung it up. The call to prayer was made and he led a section in two rak'as, after which they withdrew and he led the other section in two rak'as, so that God’s Messenger prayed four rak'as and the people prayed two. (Bukhari and Muslim.)