What did the Prophet Muhammad (saw) do when Bilal brought a short spear (or stick) and fixed it in the ground?
 Narrated Abu Juhaifa:                     I saw Bilal bringing a short spear (or stick) and fixing it in the ground, and then he proclaimed the Iqama of the prayer, and I saw Allah's Apostle coming out, wearing a cloak with its sleeves rolled up. He then offered a two-rak`at prayer while facing the stick, and I saw the people and animals passing in front of him beyond the stick.