Hafsah (May Allah be pleased with her) reported:
Messenger of Allah (ﷺ) 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]. (JA)
App reference (JA): Book 2, Hadith 45 (JA)
Arabic/English book reference (JA): Book 2, Hadith 725 (JA)