The Prophet (may Allah's peace and blessings be upon him) gave an example of the miser and the generous person. He described them as two men, each wearing an iron armor that covers him from the breast to the collar bone. Whenever the generous person spends in charity, his armor expands and increases in length until it drags behind him and covers his feet and footprints. As for the miser, he is like a man whose hand is tied to his neck, and whenever he tries to wear it (i.e. the armor), it gets more stuck to his neck and collar bone.