It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) forbade a person from eating and drinking with the left hand.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13665
Hadith Gradingحکم دارالسلام:حدیث صحيح، وھذا إسناد ضعیف لجهالة عبد اللہ بن دھقان