Volume 4, Book 52, Number 270:
Narrated Jabir bin ‘Abdullah:
The Prophet said, “Who is ready to kill Ka’b bin Al-Ashraf who has really hurt Allah and His
Apostle?” Muhammad bin Maslama said, “O Allah’s Apostle! Do you like me to kill him?” He replied
in the affirmative. So, Muhammad bin Maslama went to him (i.e. Ka’b) and said, “This person (i.e. the
Prophet) has put us to task and asked us for charity.” Ka’b replied, “By Allah, you will get tired of
him.” Muhammad said to him, “We have followed him, so we dislike to leave him till we see the end
of his affair.” Muhammad bin Maslama went on talking to him in this way till he got the chance to
kill him.