This is narrated from Abu Sa'id (may Allah be pleased with him).

Narrated Ibn `Abbas: The Prophet said, "If I were to take a Khalil, I would have taken Abu Bakr, but he is my brother and my companion (in Islam).

Narrated Aiyub: The Prophet said, "If I were to take a Khalil, I would have taken him (i.e. Abu Bakr) as a Khalil, but the Islamic brotherhood is better."

Narrated `Abdullah bin Abi Mulaika: The people of Kufa sent a letter to Ibn Az-Zubair, asking about (the inheritance of) (paternal) grandfather. He replied that the right of the inheritance of (paternal) grandfather is the same as that of father if the father is dead) and added, "Allah's Apostle said, ' If I were to take a Khalil from this nation, I would have taken him (i.e. Abu Bakr).

Narrated Jubair bin Mut`im: A woman came to the Prophet who ordered her to return to him again. She said, "What if I came and did not find you?" as if she wanted to say, "If I found you dead?" The Prophet said, "If you should not find me, go to Abu Bakr."

Narrated `Ammar: I saw Allah's Apostle and there was none with him but five slaves, two women and Abu Bakr (i.e. those were the only converts to Islam then).

Narrated Abu Ad-Darda: While I was sitting with the Prophet, Abu Bakr came, lifting up one corner of h is garment uncovering h is knee. The Prophet said, "Your companion has had a quarrel." Abu Bakr greeted (the Prophet) and said, "O Allah's Apostle! There was something (i.e. quarrel) between me and the Son of Al-Khattab. I talked to him harshly and then regretted that, and requested him to forgive me, but he refused. This is why I have come to you." The Prophet said thrice, "O Abu Bakr! May Allah forgive you." In the meanwhile, `Umar regretted (his refusal of Abu Bakr's excuse) and went to Abu Bakr's house and asked if Abu Bakr was there. They replied in the negative. So he came to the Prophet and greeted him, but signs of displeasure appeared on the face of the Prophet till Abu Bakr pitied (`Umar), so he knelt and said twice, "O Allah's Apostle! By Allah! I was more unjust to him (than he to me)." The Prophet said, "Allah sent me (as a Prophet) to you (people) but you said (to me), 'You are telling a lie,' while Abu Bakr said, 'He has said the truth,' and consoled me with himself and his money." He then said twice, "Won't you then give up harming my companion?" After that nobody harmed Abu Bakr.

Narrated `Amr bin Al-As: The Prophet deputed me to read the Army of Dhat-as-Salasil. I came to him and said, "Who is the most beloved person to you?" He said, " `Aisha." I asked, "Among the men?" He said, "Her father." I said, "Who then?" He said, "Then `Umar bin Al-Khattab." He then named other men.

Narrated Abu Huraira: I heard Allah's Apostle saying, "While a shepherd was amongst his sheep, a wolf attacked them and took away one sheep. When the shepherd chased the wolf, the wolf turned towards him and said, 'Who will be its guard on the day of wild animals when nobody except I will be its shepherd. And while a man was driving a cow with a load on it, it turned towards him and spoke to him saying, 'I have not been created for this purpose, but for ploughing." The people said, "Glorified be Allah." The Prophet said, "But I believe in it and so does Abu Bakr end `Umar."

Narrated Abu Huraira: I heard Allah's Apostle saying, "While I was sleeping, I saw myself standing at a well, on it there was a bucket. I drew water from the well as much as Allah wished. Then Ibn Abi Quhafa (i.e. Abu Bakr) took the bucket from me and brought out one or two buckets (of water) and there was weakness in his drawing the water. May Allah forgive his weakness for him. Then the bucket turned into a very big one and Ibn Al-Khattab took it over and I had never seen such a mighty person amongst the people as him in performing such hard work, till the people drank to their satisfaction and watered their camels that knelt down there."