Sahih al-Bukhari 3521
صحيح البخاري#3521SahihNarrated Sa`id bin Al-Musaiyab:Al-Bahira was an animal whose milk was spared for the idols and other deities, and so nobody was allowed to milk it. As-Saiba was an animal which they (i.e. infidels) used to set free in the names of their gods so that it would not be used for carrying anything. Abu Huraira said, "The Prophet (ﷺ) said, 'I saw `Amr bin 'Amir bin Luhai Al-Khuza`i dragging his intestines in the (Hell) Fire, for he was the first man who started the custom of releasing animals (for the sake of false gods)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 61:31