It was narrated from Jabir that the Messenger of Allah ﷺ said:
“If a morsel falls from the hand of anyone of you, let him wipe off whatever dirt that is on it and eat it.”

حَدَّثَنَا عَلِيُّ بْنُ الْمُنْذِرِ، حَدَّثَنَا مُحَمَّدُ بْنُ فُضَيْلٍ، حَدَّثَنَا الأَعْمَشُ، عَنْ أَبِي سُفْيَانَ، عَنْ جَابِرٍ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ " إِذَا وَقَعَتِ اللُّقْمَةُ مِنْ يَدِ أَحَدِكُمْ فَلْيَمْسَحْ مَا عَلَيْهَا مِنَ الأَذَى وَلْيَأْكُلْهَا " .