ENOfficial
It was narrated from ‘Amr bin Shu’aib, from his father, that his grandfather said: “I saw the Messenger of Allah (ﷺ) performing prayer both barefoot, and while wearing sandals.”
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا بِشْرُ بْنُ هِلاَلٍ الصَّوَّافُ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ حُسَيْنٍ الْمُعَلِّمِ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، قَالَ رَأَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يُصَلِّي حَافِيًا وَمُنْتَعِلاً .
sunnah.com