Seeing this...
Seeing this, the Muslims took up their swords and fought with them until they all died. `Amr ibn Umayyah ad‑Damri had taken out the animals of the Muslims to pasture along with a man of the Ansar. They were so close to the battlefield that they could see birds flying over the fighters. They said to one another: “No doubt these birds mean something.” When they went to see, they found the men lying dead in their blood.
The man of the Ansar asked `Amr: “What do you suggest?” He answered: “I suggest that we go immediately to the Messenger of Allah and tell him what happened.” But the man of the Ansar replied: “I would not save myself and leave a place where al‑Mundhir ibn `Amr is.” He thus fought against the enemies of the Muslims until he was killed. `Amr returned to Medina and related to the Messenger of Allah what had happened.
The Prophet said: “This was the deed of Abu Bard'; I did not wish to engage in it.” When Abu Bard' heard the news, he was angry with `Amir for betraying his covenant of protection, and for what had happened to the people of the Messenger of Allah. Abu Bard', however, died soon after. His son Rabi`ah attacked `Amir ibn at‑Tufayl, stabbing him as he sat in the assembly of his people. He missed killing him, and instead stabbed him in the leg. `Amir said: “This must be the deed of my uncle Abu Bard'.
If I die, my blood belongs to my uncle, and no one should demand it from him. But if I live, I shall decide what to do about it.” The Battle against the Banu 'n‑Nadir These events were followed by the battle against the Jewish tribe of Banu 'n‑Nadir. This happened when the Messenger of Allah went to Ka'b ibn al‑Ashraf to ask for a loan. The man welcomed him saying: “You are welcome to our home, O Abu 'l-Qasim!
” When the Messenger of Allah and his had settled down, Ka'b got up as though to prepare some food for them. But he thought to himself that he should kill the Apostle of Allah. Gabriel came down and told him about the treacherous intentions which the people had for them. The Prophet, therefore, went out as though to answer a call of nature, knowing that they would not kill his friends while he was alive.
He thus took the road to Medina where he met with a group of Ka`b's people on whom Ka'b had called to help him against the Messenger of Allah. Ka'b was informed of what had happened, and the Muslims got up and left quickly for their homes.