Hadith 504400
Chapter 10: The Two 'Ids - كتاب العيدين
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، لَمْ يَكُنْ يُصَلِّي يَوْمَ الْفِطْرِ قَبْلَ الصَّلاَةِ وَلاَ بَعْدَهَا .
Yahya related to me from Malik from Nafi that Abdullah ibn Umar did not pray either before the prayer or after it on the day of Fitr.
Reference Muwatta Malik 504400
USC-MSA web (English) reference : Book 10, Hadith 10