Second: The Prophet, blessings and peace be upon him, said, “The days of Tashriq are days of eating, drinking, and remembering Allah” (1). Thus, he gave them the same ruling: they are days of eating because of the sacrifices slaughtered during them, drinking, and remembering Allah.
Third: All three of these days are alike in that fasting is forbidden on them, as Aishah and Ibn Umar, may Allah be pleased with them, said: “Permission to fast on the days of Tashriq was granted only to one who could not find a sacrificial animal” (2).
Fourth: All three of these days are days for stoning the pillars; the stoning is not confined to two days, but applies to all three days.
Fifth: In all of them, both unrestricted and restricted takbir are prescribed—or, according to some scholars, restricted takbir alone. To the best of our knowledge, no scholar has distinguished between these three days with respect to the takbir. They therefore share all these rulings; and if that is so, it is not possible to exclude the time of slaughter from this shared status. Rather, we say that the time for slaughter continues from after the Eid prayer on the Day of Sacrifice until the end of the days of Tashriq.
This is the view chosen by Shaykh al-Islam Ibn Taymiyyah, and it is also a narration from Imam Ahmad, may Allah have mercy on him.