(6) باب الصَّلاَةِ قَبْلَ الإِمَامِ يَوْمَ الْعِيدِ
It was narrated from Tha'labah bin Zahdam that:
'Ali appointed Abu Mas'ud over the people, then went out on the day of 'Eid and said: 'O people, it is not part of the sunnah to pray before the imam.'"
Reference: Sunan an-Nasa'i 1561
In-book reference: Book 19, Hadith 6
English translation: Vol. 2, Book 19, Hadith 1562