Riyad as-Salihin, Book 2, Hadith 725 (In-Book) ⓘ
Hafsah (May Allah be pleased with her) reported: Messenger of Allah used to use his right hand for eating, drinking and wearing his clothes and used to use his left hand for other purposes.[Abu Dawud].
وعن حفصة رضي الله عنها أن رسول الله صلى الله عليه وسلم ، كان يجعل يمينه لطعامه وشرابه وثيابه، ويجعل يساره لما سوى ذلك. ((رواه أبو داود والترمذي وغيره)).