We saw the Messenger of Allah (ﷺ) addressing (the people) in the middle of the tashriq days when we were staying near his mount. This is the address of the Messenger of Allah (ﷺ) which he gave at Mina.
Sunan Abi Dawud Book 11, Hadith 232
← Previous Hadith The Prophet (ﷺ) addressed the people at Mina and he made them stay in their dwellings. He then said: The Muhajirun (Emigrants) should stay here, and he made a sign to the right side of the qiblah, and the Ansar (the Helpers) here, and he made a sign to the left side of the qiblah; the people should stay around them.

Sunan Abi Dawud Book 11, Hadith 231 Next Hadith → She was mistress of a temple in pre-Islamic days. She said: The prophet (ﷺ) addressed us on the second day of sacrifice (yawm ar-ru'us) and said: Which is this day? We said: Allah and His Apostle are better aware. He said: Is this not the middle of the tashriq days?

Sunan Abi Dawud Book 11, Hadith 233