وعن حفصة رضي الله عنها
أن رسول الله صلى الله عليه وسلم، كان يجعل يمينه لطعامه وشرابه وثيابه، ويجعل يساره لما سوى ذلك
Messenger of Allah (sallallahu alayhi wa sallam) used to use his right hand for eating, drinking and wearing his clothes and used to use his left hand for other purposes.
Riyad as-Salihin 724, Book 2, The Book of Good Manners, Hadith 45. 1 min read