Is the implementation of a hudud (fixed Qur'anic punishments) punishment a purification for the person from the sin?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: If a hudud (fixed Qur'anic punishments) punishment is carried out on a person, does that mean it is a purification from his sin, or that Allah will not hold him accountable on the Day of Resurrection?

Answer:
It has been said this and it has been said that. It has been said that they are merely deterrents, and it has been said that they are expiations. Expiations means that Allah expiates their sins with them. The correct view is that they serve both purposes: first, they are deterrents for them and for others; second, they are a purification and a trial.