Sunnah.com reference : Book 16, Hadith 16English translation : Book 16, Hadith 1495Arabic reference : Book 16, Hadith 1452
Ibn Umar narrated that the Messenger of Allah (ﷺ) said:
“When one of you eats he should eat with his right hand, and when he drinks he should drink with his right hand, for the devil eats and drinks with his left hand.” Related by Muslim.
وَعَنْهُ أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-قَالَ: { إِذَا أَكَلَ أَحَدُكُمْ فَلْيَأْكُلْ بِيَمِينِهِ, وَإِذَا شَرِبَ فَلْيَشْرَبْ بِيَمِينِهِ, فَإِنَّ اَلشَّيْطَانَ يَأْكُلُ بِشِمَالِهِ, وَيَشْرَبُ بِشِمَالِهِ }  أَخْرَجَهُ مُسْلِمٌ.‏  1‏‏1 ‏- صحيح.‏ رواه مسلم (2020)‏.‏