Saqifat Bani Sa aida
The picture on the left shows Safiqat Bani Sa'aida
Saqifah is referred to a roofed building, this particular building was used by banu Sa'idah a Jewish small tribe which was basically a part of khazraj tribe.
This place is signified in Islamic history because on the day of Prophet صلى الله عليه وآله وسلم death, the two main tribes of Madinah Aws and Khazraj, arranged a gathering at this place which included only Ansar and no Muhajareen were informed.
This event actually began when Rasulullah صلى الله عليه وآله وسلم died, upon receiving news of the Prophet (saws)'s death the companions who were ordered by the Prophet صلى الله عليه وآله وسلم to join the expedition led by Usamah returned to Madinah. Three key figures Abu Bakr, Umar and Abu Ubaydah were participants in this aborted expedition.
It is related by Omar that as they were seated in the Prophet's house a man cried out all of a sudden from outside: 'O son of Khattab (Omar) please step out for a moment'. Omar told him to leave them alone and go away as they were busy in making arrangements for the burial of the Prophet. The man replied that an incident had occurred i.e., the Ansar were gathering in force in the Thaqifah Bani Sa'idah and, as the situation was grave, it was necessary that he (Omar) should go and look into the matter lest the Ansar should do something which would lead to a war. On this Omar said to Abu Bakr, 'Let us go'.
Upon arrival at the Saqifa one of the Ansar stood up and began to extol the virtues of the Ansar. Upon hearing this, Umar said: When I saw that they wanted to cut us from our root and wrest authority from us, I wanted to make a speech, which I had composed in my mind. As I used to treat Abu Bakr with gentle courtesy to some extent and considered him more sober and gentler than me I conferred with him about the speech. When I wanted to speak he said gently so I did not like to disobey him...He said 'Now then: O men of the Ansar, you deserve all the fine qualities that you have mentioned about yourselves, but the Quraysh, for they represent the best in lineage and standing. I am pleased to offer you one of these two men, render your oath of allegiance to any one of them you like. Thus saying he took hold of my hand and that of Abu Ubaydah b. al-Jarrah". [History of alTabari]
It is narrated in Sahih al-Bukhari that Umar said:
“When he (the Apostle) died, the Ansar opposed us. They gathered in the Saqifa Banu Sa'eda. Ali, Zubayr and their friends also opposed us.”
In extolling the virtues of the Muhajireen, Hazrat Abu Bakr رضي الله عنه also said that they were: "the first on earth to worship Allah and were the patrons and the clan of the Prophet who tolerated and suffered with him and adversities and injuries inflicted upon them by their own folk who disbelieved them and all other people opposed them and alienated them".
This discussion went on and was said that there will be two caliphs on from ansar ane from muhajareen. This was opposed and Hazrat Umar رضي الله عنه narrates :
Voices rose and clamorous speech waxed hotter. I feared [total] disagreement so I said to Abu Bakr, 'Stretch out your hand so that I may give you the oath of allegiance'. He did so and I gave [him] the oath of allegiance; the Muhajirun followed and then the Ansar.