Sahih al-Bukhari Book 62, Hadith 14
The Prophet (ﷺ) 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.
While I was sitting with the Prophet, Abu Bakr came, lifting up one corner of his garment uncovering his knee. The Prophet (ﷺ) said, "Your companion has had a quarrel." Abu Bakr greeted (the Prophet (ﷺ) ) and said, "O Allah's Messenger (ﷺ)! 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 (ﷺ) 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 (ﷺ) and greeted him, but signs of displeasure appeared on the face of the Prophet (ﷺ) till Abu Bakr pitied (`Umar), so he knelt and said twice, "O Allah's Messenger (ﷺ)! By Allah! I was more unjust to him (than he to me)." The Prophet (ﷺ) 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.
I heard Allah's Messenger (ﷺ) 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."