Maliks Muwatta Book 21, Hadith Number 27.
Section : The Martyrs in the Way of Allah.
Yahya related to me from Malik from Abu’z-Zinad from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, “By He in whose hand my self is! I would like to fight in the way of Allah and be killed, then be brought to life again so I could be killed, and then be brought to life again so I could be killed.” Abu Hurayra said three times, “I testify to it by Allah!”