Maliks Muwatta Book 21, Hadith Number 42.
Section : Stimulation of Desire for Jihad.
Yahya related to me from Malik from Yahya ibn Said that the Messenger of Allah, may Allah bless him and grant him peace, stimulated people for jihad and mentioned the Garden. One of the Ansar was eating some dates in his hand, and said, “Am I so desirous of this world that I should sit until I finish them?” He threw aside what was in his hand and took his sword, and fought until he was slain.