Narrated Abdullah ibn Abu Bakr: Abdullah ibn Abu Bakr and some children of Muhammad ibn Maslamah said: There remained some people of Khaybar and they confined themselves to the fortresses. They asked the Messenger of Allah ﷺ to protect their lives and let them go. He did so. The people of Fadak heard this; they also adopted a similar way. (Fadak) was, therefore, exclusively reserved for the Messenger of Allah ﷺ, for it was not captured by the expedition of cavalry and camelry.
Hadith Referenceسنن ابي داود / كتاب الخراج والفيء والإمارة / 3016
Hadith Gradingالألبانی:ضعيف الإسناد | زبیر علی زئی:ضعيف, إسناده ضعيف, ابن إسحاق عنعن والخبر مرسل, انوار الصحيفه، صفحه نمبر 109
Hadith Takhrij« تفرد بہ أبو داود، (تحفة الأشراف: 18886) (ضعیف الإسناد) » (یہ روایت مرسل ہے جیسا کہ سند سے ظاہر ہے )
Al-Zuhri, explaining the verse "For this you made no expedition with either cavalry or camelry" said: The Prophet ﷺ concluded the treaty of peace with the people of Fadak and townships which he named which I could not remember ; he blockaded some other people who sent a message to him for capitulation. He said: "For this you made no expedition with either cavalry or camelry" means without fighting. Al-Zuhri said: The Banu al-Nadir property was exclusively kept for the Prophet ﷺ ; they did not conquer it by fighting, but conquered it by capitulation. To Prophet ﷺ divided it among the Emigrants. He did not give anything to the Helpers except two men were needy.
Shaykh Umar Farooq Saeedi
Benefits and Issues: During the siege of others, through a message of reconciliation, two forts of Khaybar—Wathih and Sulalim—came under the control of the Muslims. After allocating a portion of the wealth of Banu Nadir for his family and urgent humanitarian needs, the Messenger of Allah (sallallahu alayhi wa sallam) distributed the remainder among the Muhajirun (Emigrants). This has already been mentioned in previous authentic ahadith.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2971