Imam Ali (a.s) and Uthman

When `Uthman saw matters deteriorating to this extent he implored Amir al-mu'minin very submissively to find some way for his rescue and to disperse the people in whatever way he could. Amir al-mu'minin said, "On what terms can I ask them to leave when their demands are justified?" `Uthman said, "I authorise you in this matter. Whatever terms you would settle with them I would be bound by them." So Amir al-mu'minin went and met the Egyptians and talked to them. They consented to get back on the condition that all the tyrannies should be wiped off and Muhammad ibn Abi Bakr be made governor by removing Ibn Abi Sarh. Amir al-mu'minin came back and put their demand before `Uthman who accepted it without any hesitation and said that to get over these excesses time was required. Amir al-mu'minin pointed out that for matters concerning Medina delay had no sense. However, for other places so much time could be allowed that the Caliph's message could reach them. `Uthman insisted that for Medina also three days were needed. After discussion with the Egyptians Amir al-mu'minin agreed to it also and took all the responsibility thereof upon himself. Then they dispersed at his suggestion. Some of them went to Egypt with Muhammad ibn Abi Bakr while some went to the valley of Dhakhushub and stayed there and this whole matter ended. On the second day of this event Marwan ibn al-Hakam said to `Uthman, "It is good, these people have gone, but to stop people coming from other cities you should issue a statement so that they should not come this way and sit quiet at their places and that statement should be that some people collected in Medina on hearing some irresponsible talk but when they came to know that whatever they heard was wrong they were satisfied and have gone back." `Uthman did not want to speak such a clear lie but Marwan convinced him and he agreed, and speaking in the Holy Prophet's mosque, he said:

These Egyptians had received some news about their Caliph and when satisfied that they were all baseless and wrong they went back to their cities.

No sooner he said this than there was great hue and cry in the mosque, and people began to shout to `Uthman, "Offer repentance, fear Allah; what is this lie you are uttering?" `Uthman was confused in this commotion and had to offer repentance. Consequently, he turned to the Ka`bah, moaned in the audience of Allah and returned to his house.

Source - Nahj al-Balaghah. Translation of Syed Ali Raza. Vol. 1 Sermon 30 footnote 2 p. 165.