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 wasnarrated that Ibn ‘Umar said: “A small spear (Harbah) would bebrought out to the Prophet (PBUH) when he was travelling; he wouldplant it (in the ground) to perform prayer while facing it.” Translation Not Available
Book Ref: Sunan Ibn Majah Book 5 Hadith 941
Web Ref: Sunan Ibn Majah Vol 1 Book 5 Hadith 941