peace

Bukhari :: Book 2 :: Volume 24 :: Hadith 556
Narrated Sad (bin Abi Waqqas) :
Allah's Apostle distributed something (from the resources of Zakat) amongst a group of people while I was sitting amongst them, but he left a man whom I considered the best of the lot. So, I went up to Allah's Apostle and asked him secretly, "Why have you left that person? By Allah! I consider him a believer." The Prophet said, "Or merely a Muslim (Who surrender to Allah)." I remained quiet for a while but could not help repeating my question because of what I knew about him. I said, "O Allah's Apostle! Why have you left that person? By Allah! I consider him a believer. " The Prophet said, "Or merely a Muslim." I remained quiet for a while but could not help repeating my question because of what I knew about him. I said, "O Allah's Apostle! Why have you left that person? By Allah! I consider him a believer." The Prophet said, "Or merely a Muslim." Then Allah's Apostle (p.b.u.h) said, "I give to a person while another is dearer to me, for fear that he may be thrown in the Hell-fire on his face (by renegating from Islam)."

Bukhari :: Book 2 :: Volume 26 :: Hadith 668
Narrated Salim that his father said,
"Allah's Apostle, Usama bin Zaid, Bilal, and 'Uthman bin abu Talha entered the Ka'ba and then closed its door. When they opened the door I was the first person to enter (the Ka'ba). I met Bilal and asked him, "Did Allah's Apostle offer a prayer inside (the Ka'ba)?" Bilal replied in the affirmative and said, "(The Prophet offered the prayer) in between the two right pillars."