They all gathered at Ali's house with such eagerness that...
They all gathered at Ali's house with such eagerness that they were pushing and crushing each other; they called Ali out, and said, 'If we go to our homes again without an Imam and a Caliph such a strife will stir as will never again be stilled; you will have to consent to be our Imam and Caliph of God.' Ali replied, 'small longings have I for this authority, yet the believers must have a chief; and right gladly will I accept the temporal authority of another, even Talha.' 'Nay, thou hast more right than I, said Talha.
One who stood near by forced open Ali's palm and Talha swore the oath of allegiance to Ali. Zubeir did likewise, and from his house they brought Ali to the mosque and everybody once again thronged round him to swear the oath of allegiance to him as their Imam and Caliph." (Professor Sedillot in 'Histories des Arabes' says, "It might have been thought that all would submit themselves before his glory; so fine and so grand; but it was not to be." Contemplations for the election of a Caliph in place of Osman After the murder of Osman terror reigned in the city and the regicides had the entire mastery of the situation, there being no settled government in Medina.
The principal citizens, feeling the tumultuous state of the populace and apprehending civil war, clamoured for immediate election of a Caliph. The threatening attitude of those who had come from various parts of the empire, viz. Egypt, Syria, Mesopotamia and Persia on the occasion was a source of great alarm, because they were resolved not to disperse until they knew whom they were to have as their Caliph.
There were two candidates, Talha and Zubeir (both brothers-in-law of Ayesha) who aspired to secure the Caliphate with the powerful support of Ayesha. (Ayesha was the daughter of the first Caliph Abubakr, and a wife of the Holy Prophet. Her youngest sister was a wife of Talha, who was also a cousin of her father. Her eldest sister was a wife of Zubeir, whose son Abdullah was adopted by Ayesha.
Thus doubly related to both, Talha and Zubeir put her in the unique position of lending her powerful support to both the claimants to the Caliphate) To their great disadvantage, she was not present in Medinc at this juncture, having gone on pilgrimage to Mecca.