al-Khattab during the last Hajj which he performed...
al-Khattab during the last Hajj which he performed, ‘Abd al-Rahman came to me and said, “If only you had seen a man who came to Amir al-Muminin today, saying: ‘O Amir al-Muminin! What do you say about so-and-so? He says, “ When ‘Umar dies, I will pledge allegiance to so-and-so, for, I swear by Allah, the pledge of allegiance given to Abu Bakr was nothing but an error and it succeeded .”’ So, ‘Umar became angry.
Then, he said, ‘Insha Allah , I will stand before the people tonight and will warn them against these people who want to usurp their affairs…”. So, ‘Umar sat on the pulpit, and when the muezzins became silent, he stood up. He praised Allah as He deserved.
Then he said: “Now then … I have been informed that a speaker amongst you says, ‘I swear by Allah, when ‘Umar dies, I will pledge allegiance to so-and-so.’ One should not deceive oneself by saying that the pledge of allegiance given to Abu Bakr was an error and it succeeded. NO DOUBT, IT WAS SURELY LIKE THAT. However, Allah saved from its EVIL . And there is none amongst you towards whom throats are slit like Abu Bakr.
Whosoever pledges allegiance to anyone without consultation with the Muslims, then neither that person nor the person to whom the pledge of allegiance was given, is to be supported. Rather, they both should be killed .
And, verily, there was someone who informed us when Allah took the life of His Prophet, peace be upon him, that the Ansar opposed us and gathered, all of them, at Saqifah Bani Sa’idah; and ‘Ali, al-Zubayr and whoever was with them both, also opposed us; and the Muhajirun gathered towards Abu Bakr . . So, I said to Abu Bakr, ‘O Abu Bakr! Let us go to these brothers of ours from the Ansar’. As a result, we went, seeking them.
When we approached them, two righteous men from them met us, and informed us of the final decision of the people, and both of them said, ‘O group of Muhajirun, where are you going?’ Then, we said, ‘We are going to these brothers of ours from the Ansar.’ They said, ‘You should not go near them. Decide your affair.’ So, I said, ‘I swear by Allah, we will go to them.’ Therefore, we went until we reached them at Saqifah Bani Sa’idah. There was a wrapped man amongst them.
Then, I said, ‘Who is that?’ They said, ‘This is Sa’d b. ‘Ubadah.’ Then, I said, ‘What is wrong with him?’ They said, ‘He is sick.’ After we had sat for a little period, their speaker testified. He praised Allah as He deserved.