What advice did Prophet Muhammad (saw) give to 'Umar b. Khattab (Allah be pleased with him) regarding wealth?
 Salim b. Abdullah b. 'Umar reported on the authority of his father ('Abdullah b. 'Umar) that he had heard 'Umar b. Khattab (Allah be pleased with him) saying:                      The Messenger of Allah (may peace be upon him) gave me a gift, but I said: Give it to one who needs it more than I. He gave me wealth for the second time but I said: Give it to one who needs it more than I. Upon this the Messenger of Allah (may peace be upon him) said: Take out of this wealth which comes to you without your being avaricious and without begging, but in other circumstance's do not let your heart hanker after it.