It is reported from Ibn Shihab (may Allah have mercy on him) that part of Khaybar was taken by force, that is, conquered by fighting, and part was settled by treaty through an agreement; most of al-Katibah was taken by force through fighting, and with some of it a treaty was also made. I said to Malik (may Allah have mercy on him): What was al-Katibah? He said: The land of Khaybar in which there were forty thousand date palms.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الفيء والغنيمة / 12827