Jami` at-Tirmidhi 537
جامع الترمذي#537SahihIbn Abbas narrated:"The Prophet went out on the day of Al-Fitr, so he prayed two Rak'ah, then he did not pray before it nor after it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 5:8