Al-Walid bin Muslim narrated it from Ibn Lahi'ah, from Bakr bin Sawadah, from Abu Zur'ah al-Lakhmi, from Umar (may Allah be pleased with him), and he mentioned it with regard to the prayer of the two Eids.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة العيدين / 6190