Prohibition of passing in front of a man who is praying

 388. Ani Salih as-Samman said: One day I was with Abu Sa´id Al-Khudri, and he was praying on Friday, behind a Surah (partition) from people. When a young man from Banu Mu´ait came there and he tried to pass in front of him between him and the Sutrah, he pushed him back by striking his chest. He looked about but finding no other way to pass except in front of Abu Sa´id, he made a second attempt. He (Abu Sa´id) turned him away by striking his heast more vigorously than the first. He stood up and said unpleasant words to Abu Sa´id. Then he made his way out through the crows, and went to Marwan and reported to him what happened. Abu Sa´id too came to Marwan. Marwan said to him: ´´What happened to you and the son of your brother that he came to complain against you?´´ Abu Sa´id said: I heard from the Messenger of Allah sallahu alayhi wa sallam saying: ´´When any one of you prays behind something as a sutrah and a person tries to pass in front of him, he should repulse him by giving him a push in his neck; but if he refuses, then fight him, for he is a Satan.´´