A man came to the Prophet (may Allah's peace and blessings be upon him) and said that his camel had become exhausted and asked for a mount to carry him. But the Prophet (may Allah's peace and blessings be upon him) said he had no mount to give him. So, a man who was present said: O Messenger of Allah, I will guide him to someone who will give him a mount. Thereupon, the Prophet (may Allah's peace and blessings be upon him) told that man that he will also have a reward like the donor himself because he guided the person who needed a mount to him.