Ali Defends Himself But Not His Wife

[Rationalist]

According to the 12er Shia, Abi Bakr ordered Khalid bin Waleed to kill Ali during the prayer, but later changed his mind. When Ali came to know he beat up Khalid to prove no one can mess with him. Now the ironic part is he was unable to save his wife according to the 12er Shia.

[Suleiman]

That's chivalry for you.

[Optimus Prime]

Ali beat up Khalid ibn Walid? ROFL.

Akhi, is this in their books?

[Rationalist]

Yep. The sad part is even some of the Zaidi accept this narration.

“Ali (as) entered the mosque, and got behind Abu Bakr, and started offering his prayers alone (Waa Sala le Nafsihi); whilst Khalid sat beside him, carrying a sword. Upon his completing the tashahud, Abu Bakar  felt ashamed and was fearful of the repercussions that might flow from this, he hence turned to Khalid and told him not implement his instructions, and then proceeded to the final salutation. Ali (as) then inquired of him (Khalid) the order that he had been given, to which he (Khalid) replied that I was told to kill you. Ali (as) asked him would you have done that? He said that if I was not stopped, by God! I would have done it. Ali (as) held him up and threw him down; people began to swear “By Allah, Ali will kill Khalid”. They therefore approached Ali, and asked that he forgive him for the sake of Allah (swt) and the individual in his grave (i.e. the Prophet ). Ali (as) therefore left him, and grabbed Umar by the neck and told him “O son of dahak! Had there been no will of the Prophet and the Book of Allah (swt), you would have known today who is weak and who is not”

http://www.shiapen.com/concise/ali-offer-prayers-abu-bakar.html