The Jews of Banu Nadir and Qurayza fought against the Messenger of Allah ﷺ. So the Messenger of Allah ﷺ expelled Banu Nadir and allowed Qurayza to remain, showing them favor, until Qurayza later went to war against him. He then executed their men and divided their women, children, and property among the Muslims, except for some of them who came to the Messenger of Allah ﷺ. He granted them safety, and they embraced Islam.The Messenger of Allah ﷺ expelled all the Jews of Madinah, including Banu Qaynuqa, who were the people of Abdullah bin Salam, the Jews of Banu Haritha, and every other Jew in Madinah.
حدثنا عبد الرزاق أخبرنا ابن جريج عن موسى بن عقبة عن نافع
أن يهود بني النضير وقريظة حاربوا رسول الله ﷺ فأجلى رسول الله ﷺ بني النضير وأقر قريظة ومن عليهم حتى حاربت قريظة بعد ذلك فقتل رجالهم وقسم نساءهم وأولادهم وأموالهم بين المسلمين إلا بعضهم لحقوا برسول الله ﷺ فأمنهم وأسلموا وأجلى رسول الله ﷺ يهود المدينة كلهم بني قينقاع وهم قوم عبد الله بن سلام ويهود بني حارثة وكل يهودي كان بالمدينة
Its isnad is sahih. Bukhari (7/255, 256), Muslim (2/56, 57), and Abu Dawud (3/117, number 3005 in the Egyptian edition edited by Shaikh Muhammad Muhyi al-Din Abdul-Hameed) all narrated it, all of them through the route of Abdul-Razzaq, with this same isnad. Ibn Kathir cited it in his tafsir (8/283) from Bukhari. See also 4532, 5136, 5520, 5582, 6054.The addition "and showed favor upon them, until Qurayza fought" we added out of necessity from Sahihayn and Abu Dawud, because the statement does not make sense without it, as is clear. The narration of these three is from the same route through which Ahmad narrated it here, namely the route of Abdul-Razzaq. In my view, the more likely explanation is that its omission was an oversight by the early copyists of the manuscripts of the Musnad, since it is missing here in all three original manuscripts.As for his saying "fa-amanahum," it may be read with a simple hamza and a doubled mim, or it may be read "fa-aamanahum" with an elongated hamza and a single mim. Both readings are established and correct.Banu Qaynuqa, with fatha on the qaf, sukun on the ya, and damma on the nun, was one of the Jewish tribes of Madinah. The nun may also take fatha or kasra, but damma is the more well known and more widely recognized reading.Abdullah bin Salam, with fatha on the sin and a light lam, was the Israelite scholar, an ally of Banu Awf bin Khazraj, and an early companion who accepted Islam when the Prophet ﷺ arrived in Madinah. He has a collection of hadiths that will appear later in the Musnad (5/450-453).