مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُعَمَّرِ بْنِ خَلَّادٍ قَالَ سَمِعْتُ أَبَا الْحَسَنِ ( عليه السلام ) يَقُولُ مَنْ أَكَلَ فِي مَنْزِلِهِ طَعَاماً فَسَقَطَ مِنْهُ شَيْ‏ءٌ فَلْيَتَنَاوَلْهُ وَ مَنْ أَكَلَ فِي الصَّحْرَاءِ أَوْ خَارِجاً فَلْيَتْرُكْهُ لِلطَّيْرِ وَ السَّبُعِ .
8. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Mu’ammar ibn Khallad who has said the following: “I once heard abu al-Hassan , saying, ‘If one eats food in his house and pieces of food fall off, he must pick them up and eat; but if one eats food in the wilderness or outdoors he should leave such pieces for the birds and beasts.”’ (See also Ch. 48, h 15) 