That the Prophet (ﷺ) said: "When one of you eats food, and he drops a pieces of it, then let him remove anything suspicious from it and eat it. Do not leave it for Ash-Shaitan." He said: There is something about this from Anas.
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا ابْنُ لَهِيعَةَ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ إِذَا أَكَلَ أَحَدُكُمْ طَعَامًا فَسَقَطَتْ لُقْمَةٌ فَلْيُمِطْ مَا رَابَهُ مِنْهَا ثُمَّ لْيَطْعَمْهَا وَلاَ يَدَعْهَا لِلشَّيْطَانِ . قَالَ وَفِي الْبَابِ عَنْ أَنَسٍ .
Tirmizi
The Book on Food • Hadith 1862