عَنْ أَنَسِ بْنِ مَالِكٍ رَضِيَ اللَّهُ عَنْهُ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ إِذَا كَانَ يَوْمُ الْفِطْرِ لَمْ يَخْرُجْ حَتَّى يَأْكُلَ تَمَرَاتٍ يَأْكُلُهُنَّ أَفْرَادًا (وَفِي لَفْظٍ وِتْرًا)
Sayyiduna Anas bin Malik (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) would not go out on the day of Eid al-Fitr until he had eaten dates, and he (peace and blessings be upon him) would eat an odd number of dates.