Hadith 941
Chapter 36: What suffices as a Sutrah (screen) for one performing Prayer - كتاب إقامة الصلاة والسنة فيها
حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا عَبْدُ اللَّهِ بْنُ رَجَاءٍ الْمَكِّيُّ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ كَانَ النَّبِيُّ ـ صلى الله عليه وسلم ـ تُخْرَجُ لَهُ حَرْبَةٌ فِي السَّفَرِ، فَيَنْصِبُهَا فَيُصَلِّي إِلَيْهَا .
It was narrated that Ibn ‘Umar said:
“A small spear (Harbah) would be brought out to the Prophet (ﷺ) when he was travelling; he would plant it (in the ground) to perform prayer while facing it.”
Reference : Sunan Ibn Majah 941
In-book reference : Book 5, Hadith 139