The ruling on slaughtering the sacrificial animal for Tamattu' before the Day of Sacrifice

The questioner : Yes. Our Shaykh (may Allah preserve him), some groups, and this is something I witnessed with my own eyes, allow, meaning especially the common people, that they must eat from it. So they slaughter the sacrificial animal and then eat from it, eating throughout all the days. The group eats three hundred or two hundred sheep as long as they are in the house

The Shaykh : Yes.

The questioner : they do not waste anything.

The Shaykh : Perhaps they say that each of us offers to the other, and among us are poor people who will receive it as charity. No, this is not permissible. I actually heard something worse than this.
There is a well-known statement by al-Shafi'i (may Allah have mercy on him) that it is permissible to slaughter the sacrificial animal for Tamattu' from the time of entering the state of ihram for 'Umrah or from the time of exiting it, by analogy with fasting, because the fasting of the one performing Tamattu', if he does not find the sacrificial animal, is permissible from the time he enters the state of ihram for 'Umrah. Some scholars issued a fatwa to this effect a few years ago, before this matter you mentioned came up, and people came asking, saying: We slaughtered earlier based on the fatwa of so-and-so or so-and-so. So we issued a fatwa to them that there is no harm, as long as they are relying on the fatwa of a scholar, and it is their obligation to ask the people of knowledge, so there is no harm.