Sunan Abi Dawud

Abu Salih said:I narrate what I witnesses from Abu Sa'id and heard from him. Abu Sa'id entered upon Marwan and said: I heard the Messenger of Allah (ﷺ) say: When one of you prays facing any object which conceals him from people, and someone wishes to pass in front of him, he should strike him at his chest; if he refuses (to go), he should fight him; he is only a devil. Abu Dawud said: Sufyan Ath-Thawri said: ""A person arrogantly walks in front of me while I am praying, so I stop him, and a weak person passes, so I dont stop him