And Musa's people made of their ornaments a calf after him, a (mere) body, which gave a mooing sound. What! could they not see that it did not speak to them nor guide them m the way? They took it (for worship) and they were unjust.

Allah promised you many acquisitions which you will take, then He hastened on this one for you and held back the hands of men from you, and that it may be a sign for the believers and that He may guide you on a right path.