What did Prophet Muhammad (peace be upon him) say about the reward of deeds depending upon one's intentions?
      Narrated 'Umar bin Al-Khattab:                          Allah's Apostle said, "The reward of deeds depends upon the intention      and every person will get the reward according to what he has      intended. So whoever emigrated for Allah and His Apostle, then his      emigration was for Allah and His Apostle. And whoever emigrated for      worldly benefits or for a woman to marry, his emigration was for what      he emigrated for."