We must understand that anyone whether one of the most...
We must understand that anyone whether one of the most eminent human beings or any of the angels dearest and nearest to Allah does not carry the status of even a shoe- maker in terms of frivolity and disgrace, while facing the magnificence of Divinity. Thus it becomes clear that as Shari'ah has regarded Shirk to be an extremely enormous sinful act, one's wisdom and common intellect also recognizes Shirk to be as such.
It is the greatest of all vices which is a fact, because the greatest of all inequities to be found in a man is that he should disrespect his elders. Who else is bigger than Allah in greatness! Committing an act of Shirk verily amounts to being disrespectful towards Him.
Tauhid (Monotheism) is the only way out: Allah has said in one of the verses of the Noble Qur'an: {And we did not send any Messenger before you (O Muhammad {peace be upon Him}) but We inspired him (saying): La ilaha ilIa Ana [none has the right to be worshipped but I (Allah)], so worship Me (Alone and none else).} (V.2l:25) It means that all the Messengers were sent by Allah with exactly the same commandment that none but Allah should be worshipped and only Allah is worthy of being worshipped.
We thus understand that the commandment in regard to the recognition of Oneness of Allah and the prohibition concerning the joining of others in worship with Him is a matter which is a common constituent of all the previous revealed doctrines, and hence this is the only way out for one's salvation. The rest of all the other creeds are in error.
Allah is disgusted with Shirk: It is reported by Abu Hurairah {May Allah have mercy on him} that Allah's Messenger {Peace be upon Him} said: Allah has made the following statement: "I am most dispensed with the action of joining others in worship with Me.
Whosoever does an act in which he joins others in worship with Me, I shun him and his partners and become disgusted with him." It means that unlike others who divide their shared goods among themselves, I do not do so because I stand in need of no one. Whoever performs a virtuous deed for Me by giving Me a partner in it, I do not even take My share and leave the whole of it for others and become disgusted with him.
It thus becomes known to us that whoever does an act for Allah, and does the same act for an entity other than Allah, he has indeed committed Shirk and it further elaborates that any act of worship which is dedicated to Allah by the polytheists is unacceptable.