حَدَّثَنَا خَلَفُ بْنُ الْوَلِيدِ حَدَّثَنَا أَبُو مَعْشَرٍ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ مَرَّ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِطَعَامٍ وَقَدْ حَسَّنَهُ صَاحِبُهُ فَأَدْخَلَ يَدَهُ فِيهِ فَإِذَا طَعَامٌ رَدِيءٌ فَقَالَ بِعْ هَذَا عَلَى حِدَةٍ وَهَذَا عَلَى حِدَةٍ فَمَنْ غَشَّنَا فَلَيْسَ مِنَّا
مسند امام احمد بن حنبل · Hadith 5113
It was narrated that Ibn 'Umar said: The Messenger of Allah (PBUH) passed by some food the seller of which had made it look good. He put his hand in it and found some bad food. He said: "Sell this on its own and this on its own; whoever deceives us is not one of us.”
Sanad
حَدَّثَنَا خَلَفُ بْنُ الْوَلِيدِ حَدَّثَنَا أَبُو مَعْشَرٍ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ