The ruling on a person addicted to intoxicants after being flogged three times

Question:
If a drinker of intoxicants is addicted to drinking intoxicants, is he to be killed?

Answer:
What is known among the scholars is that the hadd is carried out against him; every time it is established against him, the hadd is carried out. Some scholars held that he is to be killed on the fourth offense and thereafter, but the majority held that the hadd is carried out against him continuously until he repents. This is based on the story of the man who was brought to the Prophet (peace and blessings be upon him), and he would carry out the hadd against him. A man said, "How often he is brought! May Allah disgrace him." The Prophet (peace and blessings be upon him) disapproved of him.
Q: The hadith that states he is to be killed after the fourth offense?
The Shaykh: A group of scholars graded it as authentic from the hadith of Mu'awiyah, in the context of ta'zir (discretionary punishment).