He left off spending the Night in Mina during the Days of At-Tashreeq without an Excuse

Question :

What is the ruling on whoever left off spending the night in Mina for three days or the two mentioned days due to him being in a hurry? Is he required to slaughter an animal for every day that he missed spending the night in Mina or does he only have to slaughter one animal for all of the three days that he did not spend the night there in Mina? We would like some clarification regarding this along with mentioning the evidence.

Answer:

Whoever leaves off spending the night in Mina during the days of At-Tashreeq without an excuse, he has indeed left off a Hajj rite that the Messenger of Allâh ﷺ legislated with his statement and his action. This is also due to the implication of his allowing an exemption for some of the people with excuses, like shepherds and those people responsible for supplying water. An exemption is only in response to something that is highly emphasized. Therefore, spending the night in Mina during the days of At-Taskreeg is considered from the obligations of Hajj according to the correct view among the opinions of the people of knowledge. Whoever leaves it off without a legislated excuse, then he must slaughter an animal. This is due to what has been confirmed from Ibn 'Abbas that he said:
"Whoever leaves off a Hajj rite or forgets it, then he must shed blood (i.e., sacrifice an animal)."

The slaughtering of one animal suffices for leaving off spending the night (in Mina) during the days of At-Tashreeq. And Allâh knows best.

Source:
Ash-Shaykh Ibn Baz
Fatawa Islamiyah, Vol. 4 Pages 234