It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) had a she-camel named "Adhba" which had never been left behind by anyone. Once, a Bedouin came on his camel and surpassed her. This was very hard on the Muslims. The Prophet (peace and blessings be upon him) noticed the expressions on their faces. Then the people themselves said, "O Messenger of Allah (peace and blessings be upon him)! Adhba has been left behind." The Prophet (peace and blessings be upon him) said, "It is Allah's right that whatever He raises in this world, He also lowers it."