Story of the cow

Story of worship of the Cow in the Quran 20:86-98:

Then Musa (Moses) returned to his people in a state of anger and sorrow. He said: "O my people! Did not your Lord promise you a fair promise? Did then the promise seem to you long in coming? Or did you desire that wrath should descend from your Lord on you, so you broke your promise to me (i.e disbelieving in Allah and worshipping the calf)?"

They said: "We broke not the promise to you, of our own will, but we were made to carry the weight of the ornaments of the [Fir'aun's (Pharaoh)] people, then we cast them (into the fire), and that was what As-Samiri (magician) suggested."

Then he took out (of the fire) for them a statue of a calf which seemed to low. They said: "This is your ilah (god), and the ilah (god) of Musa (Moses), but [Musa (Moses)] has forgotten (his god).'"

Did they not see that it could not return them a word (for answer), and that it had no power either to harm them or to do them good?

And Harun (Aaron) indeed had said to them beforehand: "O my people! You are being tried in this, and verily, your Lord is (Allah) the Most Beneficent, so follow me and obey my order."

They said: "We will not stop worshipping it (i.e. the calf), until Musa (Moses) returns to us."

[Musa (Moses)] said: "O Harun (Aaron)! What stopped you when you saw them going astray;

"That you followed me not (according to my advice to you)? Have you then disobeyed my order?"

He [Harun (Aaron)] said: "O son of my mother! Seize (me) not by my beard, nor by my head! Verily, I feared lest you should say: 'You have caused a division among the Children of Israel, and you have not respected my word!' "

[Musa (Moses)] said: "And what is the matter with you. O Samiri? (i.e. why did you do so?)"

(Samiri) said: "I saw what they saw not, so I took a handful (of dust) from the hoof print of the messenger [Jibrael's (Gabriel) horse] and threw it [into the fire in which were put the ornaments of the Fir'aun's (Pharaoh) people, or into the calf]. Thus my inner-self suggested to me."

Musa (Moses) said: "Then go away! And verily, your (punishment) in this life will be that you will say: "Touch me not (i.e.you will live alone exiled away from mankind); and verily (for a future torment), you have a promise that will not fail. And look at your ilah (god), to which you have been devoted. We will certainly burn it, and scatter its particles in the sea."

Your Ilah (God) is only Allah, the One (La ilaha illa Huwa) (none has the right to be worshipped but He). He has full knowledge of all things.