Bukhari

Hadith Commentary:
1.
Regarding ‘Amr bin Khuza‘i, Allamah ‘Ayni rahimahullah writes that his name was ‘Amr bin Luhayy bin Qam‘ah. He was among the chiefs of the tribe of Khuza‘ah. He was among those who, after the Jurhum, became custodians of the House of Allah (Baytullah). He was the first person who altered the religion of Ibrahim alayhis salam and introduced idols into the Hijaz. Furthermore, he incited the shepherds to worship idols and popularized the customs of ignorance (Jahiliyyah) among them. (Umdat al-Qari: 12/589)

2.
In any case, Allah the Exalted did not legislate these animals in this manner; rather, He has specified every kind of vow and offering (nazr wa niyaz) exclusively for Himself. These methods of making vows and offerings for idols were invented by the polytheists (mushrikin). The practice of dedicating animals in the name of idols and presenting vows and offerings for them continues even today among the polytheists, and even among so-called Muslims. Allah the Exalted has not sent down any authority for this from the heavens. All of this is the way of the ignorant, which has become prevalent in our society. May Allah protect us from it.

Hadith Commentary:

Among ignorant Muslims, such evil customs are still prevalent today that they release animals in the name of their so-called pirs and spiritual guides, such as "Khawaja's goat," or prepare a cauldron (deg) in the name of the "Great Pir." Then, there are specific rituals associated with these acts, such that certain people may eat from it and others may not. All of these are matters of ignorance and misguidance. May Allah, the Exalted, grant such so-called Muslims sound understanding so that they refrain from this imitation of the disbelievers.

Hadith Commentary:
In this hadith, several such animals are mentioned which the polytheists would set aside out of reverence for their false deities and would declare them forbidden for themselves.
The Noble Qur’an has strongly refuted this evil custom.
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Among us as well, such evil customs are prevalent.
People set aside animals in the name of their so-called spiritual leaders, saying, “This is Khwaja’s goat,” or “These are the cows of Jhule Lal,” or “This is the cauldron of the great Pir.”
When the eleventh (of the Islamic month) comes, people do not sell the milk of their buffaloes, but rather dedicate it in the name of the great Pir Jilani.
All of these are matters of ignorance, misguidance, and deviation; Islam has no connection with them.
May Allah keep us firm upon the straight path and protect us from such acts of shirk.
Ameen

Hadith Footnote: Vocabulary of the Hadith:
Sioub is the plural of sa'ibah.