Hadith 1433
Narrated by Sayyiduna Ibn Umar (may Allah be pleased with them both): The Messenger of Allah (peace and blessings be upon him) used to go out (to the Eid ground) on the days of Eid al-Fitr and Eid al-Adha carrying a spear, which he would place as a sutrah (barrier) and then perform the prayer behind it, and after the prayer he would deliver the sermon.
Hadith 1434
Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) on the days of Eid al-Fitr and Eid al-Adha (in the Eidgah) would fix a spear or (lance) in the ground and use it as a sutrah and then perform the prayer.