Sahih al-Bukhari Book 62, Hadith 27
While I was standing amongst the people who were invoking Allah for `Umar bin Al-Khattab who
was lying (dead) on his bed, a man behind me rested his elbows on my shoulder and said, "(O `Umar!)
May Allah bestow His Mercy on you. I always hoped that Allah will keep you with your two
companions, for I often heard Allah's Messenger (ﷺ) saying, "I, Abu Bakr and `Umar were (somewhere). I,
Abu Bakr and `Umar did (something). I, Abu Bakr and `Umar set out.' So I hoped that Allah will keep
you with both of them." I turned back to see that the speaker was `Ali bin Abi Talib.
Allah's Messenger (ﷺ) said. "While (in a dream), I was standing by a well, drawing water from it. Abu Bakr and `Umar came to me. Abu Bakr took the bucket (from me) and drew one or two buckets of water, and there was some weakness in his drawing. May Allah forgive him. Then Ibn Al-Khattab took the bucket from Abu Bakr, and the bucket turned into a very large one in his hands. I had never seen such a mighty person amongst the people as him in performing such hard work. He drew so much water that the people drank to their satisfaction and watered their camels." (Wahab, a sub-narrator said, "till their camels drank and knelt down.")
I asked `Abdullah bin `Amr, "What was the worst thing the pagans did to Allah's Messenger (ﷺ)?" He said, "I saw `Uqba bin Abi Mu'ait coming to the Prophet (ﷺ) while he was praying.' `Uqba put his sheet round the Prophet's neck and squeezed it very severely. Abu Bakr came and pulled `Uqba away from the Prophet and said, "Do you intend to kill a man just because he says: 'My Lord is Allah, and he has brought forth to you the Evident Signs from your Lord?"