A shaykh of Banu Sa'd narrates from Abu al-Aliyah (may Allah have mercy on him) that he said concerning "Indeed, he has succeeded who purifies himself" [Surah al-A'la: 14]: Sadaqat al-fitr is to be given, and then the Eid prayer is to be offered (Eid al-Fitr).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7669