Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: I heard the Prophet (peace and blessings of Allah be upon him) say: "Whoever drinks alcohol, flog him. If he drinks again, flog him again. If he drinks again, then flog him again. If he does it again, then kill him." (Imam Ibn Hibban, may Allah have mercy on him, says:) The specific reason mentioned in this narration could be that if he drinks alcohol again, it would mean that he has not accepted the command of Allah Almighty declaring it forbidden.