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.