Sahih al-Bukhari Book 62, Hadith 43
While I was with the Prophet (ﷺ) in one of the gardens of Medina, a man came and asked me to open the
gate. The Prophet (ﷺ) said to me, "Open the gate for him and give him the glad tidings that he will enter
Paradise." I opened (the gate) for him, and behold! It was Abu Bakr. I informed him of the glad
tidings the Prophet (ﷺ) had said, and he praised Allah. Then another man came and asked me to open the
gate. The Prophet (ﷺ) said to me "Open (the gate) and give him the glad tidings of entering Paradise." I
opened (the gate) for him, and behold! It was `Umar. I informed him of what the Prophet (ﷺ) had said, and
he praised Allah. Then another man came and asked me to open the gate. The Prophet (ﷺ) said to me.
"Open (the gate) for him and inform him of the glad tidings, of entering Paradise with a calamity
which will befall him. " Behold ! It was `Uthman, I informed him of what Allah's Messenger (ﷺ) had said.
He praised Allah and said, "I seek Allah's Aid."
When `Umar was stabbed, he showed signs of agony. Ibn `Abbas, as if intending to encourage `Umar, said to him, "O Chief of the believers! Never mind what has happened to you, for you have been in the company of Allah's Messenger (ﷺ) and you kept good relations with him and you parted with him while he was pleased with you. Then you were in the company of Abu Bakr and kept good relations with him and you parted with him (i.e. he died) while he was pleased with you. Then you were in the company of the Muslims, and you kept good relations with them, and if you leave them, you will leave them while they are pleased with you." `Umar said, (to Ibn "Abbas), "As for what you have said about the company of Allah's Messenger (ﷺ) and his being pleased with me, it is a favor, Allah did to me; and as for what you have said about the company of Abu Bakr and his being pleased with me, it is a favor Allah did to me; and concerning my impatience which you see, is because of you and your companions. By Allah! If (at all) I had gold equal to the earth, I would have ransomed myself with it from the Punishment of Allah before I meet Him."
We were with the Prophet (ﷺ) while he was holding `Umar bin Al-Khattab by the hand.