Sahih Muslim , Book 23, Hadith 5008 (USC-MSA) ⓘ
Ibn 'Umar reported Allah's Messenger as saying: When any one of you intends to eat (meal), he should eat with his right hand. and when he (intends) to drink he should drink with his right hand, for the Satan eats with his left hand and drinks with his left hand.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَمُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، وَزُهَيْرُ بْنُ حَرْبٍ، وَابْنُ، أَبِي عُمَرَ - وَاللَّفْظُ لاِبْنِ نُمَيْرٍ - قَالُوا حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ أَبِي بَكْرِ بْنِ عُبَيْدِ، اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ عُمَرَ عَنْ جَدِّهِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " إِذَا أَكَلَ أَحَدُكُمْ فَلْيَأْكُلْ بِيَمِينِهِ وَإِذَا شَرِبَ فَلْيَشْرَبْ بِيَمِينِهِ فَإِنَّ الشَّيْطَانَ يَأْكُلُ بِشِمَالِهِ وَيَشْرَبُ بِشِمَالِهِ " .
also referenced under: Book 36, Hadith 139 (In-Book) & Hadith 2020 (Reference)