Narrated by Abu Huraira (ra)
The Prophet ()) said, 'Indeed Allah is holy, He does not accept it except pure. (And in all cases he has made the order of pure holyness), according to the command that Allah has given to the messengers, the believers have done the same command. Then the Prophet ()) mentioned that a person is traveling far and wide. His hair is shaky, dust in body and sand. In this case, both of them raise their hands towards the heavens and cry out loud, O Lord! O Lord! Called to say But his food is forbidden, his drink is forbidden, his clothes are forbidden, his livelihood is forbidden, how will his Doa be accepted '(Muslim, Mishkat H / 2760).