Sayyiduna Bara’ (may Allah be pleased with him) narrates: A man came to the service of the Prophet (peace and blessings of Allah be upon him) who was wearing iron armor. He said: O Messenger of Allah (peace and blessings of Allah be upon him)! Should I participate in the battle, or should I accept Islam? The Prophet (peace and blessings of Allah be upon him) said: You should accept Islam, then participate in the battle. The man accepted Islam, then participated in the battle and was martyred. The Prophet (peace and blessings of Allah be upon him) said: He did little deeds, but he will receive a great reward.