Bulugh al-Maram 16 The Comprehensive Book كتاب الجامع 16

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. 1 1 – صحيح. رواه مسلم (2020).

Ibn Umar narrated that the Messenger of Allah (صلى الله عليه وسلم) 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.