What did the Prophet Muhammad (saw) do when he entered the Ka`ba accompanied by Bilal, Usama bin Zaid and `Uthman bin Talha?
 Narrated Nafi`:                     Ibn `Umar said, "The Prophet arrived at Mecca and sent for `Uthman bin Talha. He opened the gate of the Ka`ba and the Prophet, Bilal, Usama bin Zaid and `Uthman bin Talha entered the Ka`ba and then they closed its door (from inside). They stayed there for an hour, and then came out." Ibn `Umar added, "I quickly went to Bilal and asked him (whether the Prophet had prayed). Bilal replied, 'He prayed in it.' I asked, 'Where?' He replied, 'Between the two pillars.' "Ibn `Umar added, "I forgot to ask how many rak`at he (the Prophet) had prayed in the Ka`ba."