ENOfficial
He reported God’s messenger as saying, "When food is set down take off your sandals, for it gives more rest to your feet."
Source: sunnah.com
Other translations
Arabic
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِذَا وُضِعَ الطَّعَامُ فَاخْلَعُوا نِعَالَكُمْ فإِنَّه أرْوَحُ لأقدامكم»
sunnah.com