Narrated Ibn `Umar: The Prophet used to proceed to the Musalla and an 'Anaza used to be carried before him and planted in the Musalla in front of him and he would pray facing it (as a Sutra).
Hadith Referenceصحيح البخاري / كتاب العيدين / 973
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة