Allâh's Messenger (ﷺ) said, "Who will kill Ka'b bin Al-Ashraf who hurt Allâh and His Messenger (ﷺ)?" Thereupon Muḥammad bin Maslama got up saying, "O Allâh's Messenger (ﷺ)! Would you like that I kill him?" The Prophet (ﷺ) said, Yes. Muḥammad bin Maslama said, "Then allow me to say a thing (i.e. to deceive Ka'b). The Prophet (ﷺ) said, You may say it." Then Muḥammad bin Maslama went to Ka'b and said, That man (i.e. Muḥammad) demands Sadaqa from us, and he has troubled us, and I have come to borrow something from you." On that Ka'b said, "By Allâh, you will get tired of him ! " Muḥammad bin Maslama said, "Now as we have followed him, we do not want to leave him unless and until we see how his end is going to be. Now we want you to lend us a camel load or two of food." Ka'b said, "Yes, (I will lend you), but you should mortgage something to me." Muḥammad bin Maslama and his companion said, "What do you want?" Ka'b replied, "Mortgage your women to me." They said, "How can we mortgage our women to you and you are the most handsome of the Arabs?" Ka'b said, Then mortgage your sons to me." They said, "How can we mortgage our sons to you? Later they would be abused by the people's saying that so-and-so has been mortgaged for a came load of food. That would cause us great disgrace, but we will mortgage our arms to you." Muḥammad bin Maslama and his companion promised Ka'b that they or he Muḥammad bin Maslama would return to him. He came to Ka'b at night along with Ka'b's foster brother (milk suckling brother), Nâ'ila. Ka'b invited them to come into his fort, and then he went down to them. His wife asked him, Where are you going at this time?" Ka'b replied, "None but Muḥammad bin Maslama and my (foster milk suckling) brother Nâ'ila have come." His wife said, "I hear a voice as if blood is dropping from him, Ka'b said, "They are none but my brother Muḥammad Bin Maslama and my foster (milk suckling) brother Nâ'ila. A generous man should respond to a call at night even if invited to be killed. Muḥammad bin Maslama went with two men. (Some narrators mention the men as Abs bin Jabr Al-bin ' Aus and Abbâd bin Bishr.) So Muḥammad bin Maslama went in together with two men, and said to them, "When Ka'b comes, I will touch his hair and smell it, and when you see that I have got hold of his head, strike him. (The subnarrator also mentioned) that Muhammad (ﷺ) bin Maslama said to his companions, "I will let you smell his head." Ka'b bin Al-Ashraf came down to them, wrapped in his clothes, and diffusing perfume. Muḥammad bin Maslama said, "I have never smelt a better scent than this." Ka'b replied." I have got the best Arab women who know how to use the high class of perfume." Muḥammad bin Maslama requested Ka'b " Will you allow me to smell your head?" Ka'b said, "Yes." Muḥammad smelt it and made his companions smell it as well. Then he requested Ka'b again, Will you let me (smell your head)? Ka‘b said, "Yes." When Muḥammad got a strong hold of him, he said (to his companions), "Get at him ! " So they killed him and went to the Prophet (ﷺ) and informed him. [5:369-O.B]