I was present with the Messenger of Allah (ﷺ) on the day of Hunain. I saw the Messenger of Allah (ﷺ) and there was no one with him except me and Abu Sufyan bin al-Harith bin "Abdul-Muttalib. We stayed close to the Messenger of Allah (ﷺ) and did not leave him. He was riding a grey mule of his - and perhaps Ma"mar said: white - that had been given to him by Farwah bin Na"amah al-Judhami. When the Muslims and the kuffar met, the Muslims turned and fled, but the Messenger of Allah (ﷺ) spurred his mule towards the kuffar. Al-‘Abbas said: I was holding on to the reins of the mule of the Messenger of Allah (ﷺ), trying to restrain it, but he was rushing towards the mushrikeen, and Abu Sufyan bin al-Harith was holding on to the stirrup of the Messenger of Allah (ﷺ). The Messenger of Allah (ﷺ) said: "O "Abbas, call out: O people of as-Samurah[1].” I was a man with a loud voice, so I said at the top of my voice: Where are the people of as-Samurah? He said: By Allah, when they heard my voice, they came back like cows coming back to their calves, saying: "Here we are, here we are, here we are!" The Muslims came and fought with the kuffar, then the call went out to the Ansar: O Ansar! And the last to be called were Banul-Harith bin al-Khazraj. They said: O Banul-Harith bin al-Khazraj! The Messenger of Allah (ﷺ), seated on his mule, craned his neck to watch the fighting, and the Messenger of Allah (ﷺ) said: "Now the battle is raging.” Then the Messenger of Allah (ﷺ) took some pebbles and flung them at the faces of the kuffar, then he said: "They are defeated, by the Lord of the Ka"bah, they are defeated by the Lord of the Ka"bah!" Then I went and looked, and saw that the fighting was as it had been before, as far as I could see. He said: By Allah, as soon as the Messenger of Allah (ﷺ) threw the pebbles at them, their force was spent and they began to retreat, until Allah defeated them. He said: It is as if I can see the Prophet (ﷺ) , pursuing them on his mule.

[1]As-Samurah, this was the tree beneath which they swore the bai"ah (oath of allegiance) of ar-Ridwan.