The Banu Nadir was a prominent affluent Jewish tribe of Medina, who had cultivable land and palm plantations of Medina, the chief of the Banu Nadir, "Kab bin Ashraf" was murdered on the order of Muhammad, and after the Banu Qaynuqa , the Banu Nadir was the second tribe whose everything was snatched and expelled from Medina by Muhmmad.
Read the full story of "murder of Kab bin Ashraf by muhmmad" here
Islamic scholar "Syed Abul Ala Maududi" describes this event as follows
Book : Tahfeem-ul-Quran by Syed Abul A'ala Maududi page 408
Book : Tahfeem-ul-Quran by Syed Abul A'ala Maududi page 408
Maududi writes further
Book : Tahfeem-ul-Quran by Syed Abul A'ala Maududi page 409
The Jews were in no way responsible for the murders committed by Muhammad's followers, and even after Muhammad had a lot of looted money from Banu Qaynuqa, he went to Banu Nadir to ask for money,
Actually asking for the blood money from Banu Nazir was a trick of Muhammad, he thought that the people of Banu Nazir clan would oppose his illegitimate demand and then he would get a good excuse to attack Banu Nadir clan, but it didn't happen, Banu Nadir's people were so scared that they even accepted this illegitimate demand of Muhammad and went to collect blood money from there people. When Muhammad saw that his strategywas failing he get an another strategy, He immediately got up and returned to madinah, When people asked him, he said that Gibreel told him that the people of Banu Nazir's were plotting to kill him, which was nothing but a false allegation, in fact if he had come to know about that Banu Nazir people were plotting to throw stones from the wall on him, he should need to caught them red handed, after all he claimed to be a messenger of God, But neither did any of his companions see anyone to climbing on the wall, nor did they did't feel danger to there life, actually he just wanted an excuse and when he didn't get it he made it up.
in the end of this event Maududi writes that
Book : Tahfeem-ul-Quran by Syed Abul A'ala Maududi page 410
On banu Nadir's exodus from Medina, Allah says in the Qur'an that
Quran Surah Al-Hashr verse 5, Quran 59 : 2
It is He who expelled the ones who disbelieved among the People of the Scripture from their homes at the first gathering. You did not think they would leave, and they thought that their fortresses would protect them from Allāh; but [the decree of] Allāh came upon them from where they had not expected, and He cast terror into their hearts [so] they destroyed their houses by their [own] hands and the hands of the believers. So take warning, O people of vision.
— Saheeh International
— Saheeh International
But wait, the story didn't end there, in this war, Mohammed ordered to cut down and to burn all the trees of Banu Nazir, Because of in desert areas like Arabia, pouring poison into water wells and cutting trees was considered as a crime which is punishable by death. so to justify this action, he just needed to get an order from the Allah and this Work is easy when Allah is in your right hand.
Quran Surah Al-Hashr verse 2, Quran 59 : 2
Whatever you have cut down of [their] palm trees or left standing on their trunks - it was by permission of Allāh and so He would disgrace the defiantly disobedient.
— Saheeh International
But Muhammad was not going to stop here, what happened after that was even more horrific and brutal, when the Muhmmad massacred 800 people of the third Jews tribe Banu Qurayza. And Their women and children were enslaved as sex slaves and slaves.
Research credit : Zafar heretic
Reference