Question: If the servant’s will is subject to Allah’s will, how can the servant disobey? What accounts for a wrongful act when the ability to choose is divinely granted?
Answer: Allah has given His servants choice between good and evil. Using that capacity for righteousness is obedience; employing it for wrongdoing is disobedience.
The ability to choose is Allah’s gift; responsibility for choosing to disobey belongs to the servant.