Sunan Abi Dawud 1154
سنن أبي داود#1154SahihUbaid Allah b. 'Abd Allah b. 'Utbah b. Mas'ud said:'Umar b. al-Khattab asked Abu Waqid al-Laithi: What did the Messenger of Allah (ﷺ) recite during the prayer on the day of sacrifice and on the breaking of the fast ? He replied: He recited at both of them Surah al-Qaf, "By the Glorious Quran" [50] and the Surah "The Hour is nigh
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim (891)
In-book reference: 2:765