This hadeeth comes under the following chapter: IT WAS NOT PERMISSIBLE TO EAT THE FLESH OF SACRIFICIAL ANIMALS BEYOND THREE DAYS AT THE BEGINNING OF ISLAM, BUT THIS PROHIBITION WAS ABROGATED, AND NOW IT IS PERMISSIBLE
Abu Sa'id al-Khudri reported Allaah's Messenger (sallAllaahu alayhi wa sallam) having said: O people of Medina, do not eat the flesh of sacrificed animals beyond three days. Ibn al-Muthanni said: Three days. They (the Companions of the Prophet) complained to the Messenger of Allaah (may peace he upon him) that they had children and servants of theirs (to feed), whereupon he said: Eat, and feed others, and store, and make it a provision of food.