Sahih Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Volume: 005 / Book Number: 059 / Hadith Number: 377
Narrated Jabir bin 'Abdullah:
On the day of the battle of Uhud, a man came to the Prophet and said, "Can you tell me where I will be if I should get martyred?" The Prophet replied, "In Paradise." The man threw away some dates he was carrying in his hand, and fought till he was martyred .