The Messenger of Allah ﷺ charged us, while we were at Khaybar, that we were not to kill any child or woman.
عهد إلينا رسول الله ﷺ ونحن بخيبر أن لا نقتل صبيا ولا امرأة.
Ishaq bin Rahawayh narrated it (Matalib Aliyah 1959) from Rawh bin Ubada, who said, Muhammad bin Abu Hafsa told us, from Zuhri, from Abdul-Rahman bin Abdullah bin Kaab bin Malik, or Abdullah bin Kaab, who was the guide of Kaab bin Malik, from Kaab bin Malik, and he related it.Ibn Hajar said in Matalib, "This is a sahih chain."I say, there is disagreement about the narrator from Kaab bin Malik, just as there is disagreement about whether this belongs to the musnad of Kaab or the musnad of his brother, as it appears in Ahmad (in the missing volume that was recovered, 66/000) from Abdul-Razzaq, from Ma'mar, who said, Zuhri said, Ibn Kaab bin Malik told me, from his uncle, that the Prophet ﷺ, when he sent someone to Ibn Abu Huqayq in Khaybar, and he related it similarly. It is also found in the Musannaf of Abdul-Razzaq (9385).However, Ibn Hajar holds the view that Malik had no son other than the famous poet. He mentioned this in the biography of Kaab bin Malik in al-Isaba. For this reason, more than one scholar has concluded that this belongs to the musnad of Kaab bin Malik, narrated from him by his son, and from his son by a number of his companions.Ibn Abdul-Barr, in Tamhid (11/70–71), presented some of these chains and stated definitively that the hadith belongs to Abdul-Rahman bin Abdullah bin Kaab bin Malik (meaning, from Abdullah, from his father Kaab bin Malik).