عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ تُرْكَزُ لَهُ الْحَرْبَةُ فِي الْعِيدَيْنِ فَيُصَلِّي إِلَيْهَا
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that on both Eid prayers, a spear would be fixed for the Noble Prophet (peace and blessings be upon him), then he (peace and blessings be upon him) would offer prayer facing towards it.