The Messenger of Allah (PBUHH) who witnessed this...

The Messenger of Allah (PBUHH) who witnessed this, gave permission to Ali to challenge him and said: “Come forward!” And when Ali went ahead, the Prophet (PBUHH) put his armour on his body and his turban on his head and gave him his special sword, then he said to him: “Go ahead” When Ali left, the Prophet said: “Indeed, the whole faith (Iman) has confronted the whole kufr (or shirk)!

[10] “ Amr dismounted from the horse and attacked Ali, he pointed the sword towards Ali’s head, but Ali drew his shield to prevent it. However, Amr’s sword splits the shield and hits the forefront of Ali’s head as well. However, Ali did not give him any respite at that moment and struck the sword behind Amr’s neck and hit him so hard that his head was cut off and fell to the ground [11] .

According to a narration by Jabir who said: “I was with Ali at that moment to watch the fight of the two of them, and when they attacked each other, a dust arose that no one could see the two of them anymore, and amid that dust suddenly, the voice of Ali’s glorification of…