From Anas: "The Prophet ﷺ prohibited that a man should drink while standing." (Qatadah said:) So it was said: "And eating ?" He (Anas) said: "That is worse."  

أَنَّ النَّبِيَّ ﷺ نَهَى أَنْ يَشْرَبَ الرَّجُلُ قَائِمًا فَقِيلَ الأَكْلُ قَالَ ذَاكَ أَشَدُّ  

"We would eat during the time of the Messenger of Allah ﷺ while we were walking, and we would drink while we were standing."  

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

"The Prophet ﷺ prohibited drinking while standing." And there are narrations on this topic from Abu Sa'eed, Abu Hurairah, and Anas. And this Hadith is Hasan Gharib. This Hadith was reported from other narrators, from Sa'eed, from Qatadah, from Abu Muslim, from Al-Jarud, that the Prophet ﷺ said: "The Muslim's wandering (animal) stirs the Fire." Al-Jarud bin Al-Mu'alla is called Ibn Al-'Al' but what is correct is Al-Mu'alla.  

أَنَّ النَّبِيَّ ﷺ نَهَى عَنِ الشُّرْبِ قَائِمًا قَالَ وَفِي الْبَابِ عَنْ أَبِي سَعِيدٍ وَأَبِي هُرَيْرَةَ وَأَنَسٍ