It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "Whoever drinks alcohol, flog him. If he drinks again, then flog him again. If he drinks a third time, then flog him again. And on the fourth occasion, he said: 'Kill him.'"
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6553
Hadith Gradingحکم دارالسلام:صحيح بشواهده، وهذا إسناد ضعيف لضعف شهر بن حوشب