The matter of how to raise sufficient money to recompense the family of the two innocent dead tribesmen of Abu Bara weighed heavily upon the Prophet (sa).

Now, the Jewish tribe of Nadir had entered into an agreement with the Prophet (sa) and were also friendly with Abu Bara's tribe, so the Prophet (sa) decided to go to them and ask their help. Omar and Abu Bakr accompanied the Prophet (sa) to the fortresses of the Nadir that lay on the outskirts of Medina.

Upon their arrival they asked to speak with their chieftains whereupon they were taken to them and explained the reason for their visit. The chieftains appeared sympathetic and agreeable to help in the matter so they invited him and his companions to stay a little while to eat with them.

The Prophet (sa) never refused an invitation and accepted whereupon several of the tribesmen including Huyay, one of their fellow chieftains excused themselves, which one could have supposed would have been to make preparations for the meal. Not long after Huyay and the others had excused themselves, unseen by anyone else, the Angel Gabriel appeared to the Prophet (sa) and told him that Huyay and his companions were planning to kill him and that he must return home immediately.

As soon as Gabriel left, without saying a word, the Prophet (sa) got up and left the gathering. The companions waited for his return and when it became evident that he was not going to return, they too left and made their way back to the Prophet's house.

When the companions arrived, the Prophet (sa) told them of Gabriel's warning and described to them the manner in which the Jewish chieftains had planned to murder him. After that, the Prophet (sa) sent Muhammad, Maslamah's son back to the fortresses with a message.

As Muhammad approached the fortresses the chieftains came out to meet him and Muhammad told them, "The Messenger of Allah (sa) has sent me to you and instructed me to tell you that on account of your plot to kill him, the treaty he made with you no longer exists."

Then, much to their amazement he described in detail the plan they had devised, the plan of which alone they were aware. Muhammad continued to deliver the rest of the message and gave them an ultimatum saying, "The Prophet (sa) gives you ten days in which to leave Medina, whosoever remains behind after that will be killed."

The Jews were deeply shocked to learn that their treachery had been exposed and who the informant was and said as a matter of bravado, "O son of Maslamah, we never thought that a man from Aws would ever bring us a message such as this!" Muhammad replied, "Hearts have changed," and returned to the Prophet (sa).