It is narrated from Sayyiduna al-Sharid (may Allah be pleased with him), who said: I heard the Prophet (peace and blessings be upon him) say: "When one of you drinks wine, beat him; then if he drinks again, beat him; then if he drinks again, beat him; then if he drinks a fourth time, kill him."
Hadith Referenceالمعجم الكبير للطبراني / باب الشين / 7213