The Time For Going Out To The 'Eid (Prayer) Sunan Abi Dawud 1135
Translation
Narrated Abdullah ibn Busr
Abdullah ibn Busr, the Companion of the Messenger of Allah, may Allah bless him and grant him peace, went out with the people on the day of Eid al-Fitr or Eid al-Adha, and he disapproved of the imam's delay, saying: "We would have already finished at this hour of ours," and that was at the time of the voluntary prayer (al-tasbih).