Narrated Sabra bin Ma'bad al-Juhani (RA):

Allah's Messenger (ﷺ) said: "Let one of you who is in Salat (prayer) put a Sutra in front of him even if it is an arrow." [Reported by al-Hakim].

وَعَنْ سَبْرَةَ بْنِ مَعْبَدٍ اَلْجُهَنِيِّ ‏- رضى الله عنه ‏- قَالَ : قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ لِيَسْتَتِرْ أَحَدُكُمْ فِي صَلَاتِهِ وَلَوْ بِسَهْمٍ } أَخْرَجَهُ اَلْحَاكِمُ [1]‏