The Book of Prayers (Kitab Al-Salat)

Muslim :: Book 4 : Hadith 1011

Ibn Umar reported: The Apostle of Allah (may peace be upon him) set up (sutra), and Abu Bakr said: He implanted iron-tipped spear and said prayer towards its direction. Ibn Abu Shaiba made this addition to it:" Ubaidullah said that it was a spear."