“At the time of the Messenger of Allah ﷺ we used to eat while walking, and drink while standing up.”  

كُنَّا عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ نَأْكُلُ وَنَحْنُ نَمْشِي وَنَشْرَبُ وَنَحْنُ قِيَامٌ