Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Apply the prescribed punishment to the drinker three times; if he drinks wine a fourth time, kill him."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17503