It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: When there will be no Kisra after this Kisra, and when there will be no Caesar after this Caesar. By Him in Whose hand is the life of Muhammad (peace and blessings be upon him), you will surely spend the treasures of both of them in the way of Allah.