It was narrated from ‘Abdur-Rahman bin Abu Sa’eed that his father said: “The Messenger of Allah (ﷺ) said: ‘When anyone of you performs prayer, let him pray facing towards a Sutrah, and let him get close to it, and not let anyone pass in front of him. If someone comes and wants to pass in front of him, let him fight him, for he is a Shaitan (satan).’”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا أَبُو خَالِدٍ الأَحْمَرُ، عَنِ ابْنِ عَجْلاَنَ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي سَعِيدٍ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِذَا صَلَّى أَحَدُكُمْ فَلْيُصَلِّ إِلَى سُتْرَةٍ. وَلْيَدْنُ مِنْهَا. وَلاَ يَدَعْ أَحَدًا يَمُرُّ بَيْنَ يَدَيْهِ. فَإِنْ جَاءَ أَحَدٌ يَمُرَّ فَلْيُقَاتِلْهُ. فَإِنَّهُ شَيْطَانٌ " .
sunnah.com