Bukhari

Hadith Commentary:
The polytheists of Arabia made an idol of Ibrahim (alayhis salam) and placed a divining arrow in his hand. The Prophet (sallallahu alayhi wa sallam) said that making the arrow into a divining tool, gambling with it, or seeking omens from it cannot befit the dignity of any prophet. Qastallani said that when the disbelievers of Makkah set out on journeys and the like, they would seek omens from these arrows.
From this hadith, it is also understood that whether an idol is worshipped as a deity, or the grave or image of a prophet or saint is worshipped, both are equal in being shirk (polytheism).
Those ignorant Muslims who say that the shirk condemned in the Noble Qur’an refers only to the idol-worship of disbelievers, and that “we Muslims only revere the saints (awliya Allah) as intermediaries,”—the claim of these ignorant ones is nothing but self-deception.

(1) The issue is clear that the angels of mercy do not enter a house in which there is a dog. However, it must be remembered that a house in which a dog is kept out of necessity is exempt from this, because the Lawgiver (sallallahu alayhi wa sallam) himself has granted permission for this. And every action of the Prophet (sallallahu alayhi wa sallam) is in accordance with the will of Allah.

(2) From this blessed hadith, the importance of fulfilling promises is also understood. Fulfilling promises is necessary. The one to whom a promise is made remains in anticipation of its fulfillment. Consider: when Jibril Amin (alayhis salam) did not come as per the promise on one occasion, the Messenger of Allah (sallallahu alayhi wa sallam) remained distressed the entire day.

(3) It is understood that even the angels are bound by the divine laws, and that the law is not changed even for the Prophets; otherwise, the law would have been changed for the Messenger of Allah (sallallahu alayhi wa sallam). And Allah knows best.