Volume 1, Book 9, Number 483:
Narrated Ibn ‘Umar:
The Prophet entered the Ka’ba along with Usama bin Zaid, ‘Uthman bin Talha and Bilal and re –
mained there for a long time. When they came out, I was the first man to enter the Ka’ba. I asked
Bilal “Where did the Prophet pray?” Bilal replied, “Between the two front Pillars.”