Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) says that on the day of Uhud a man said to the Messenger of Allah (peace and blessings be upon him): If I am killed today, where will I be? He (peace and blessings be upon him) said: "In Paradise." He threw away the dates he had with him, fought the enemy and was martyred.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 17916