Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:5113Khalaf b. al-Walīd > Abū Maʿshar > Nāfiʿ > Ibn ʿUmar

[Machine] The Messenger of Allah ﷺ passed by a meal that his companion had prepared and made it look good. So he put his hand in it, and found that the food was bad. He said, "Sell this on the side and this on the side. Whoever deceives us is not one of us."  

أحمد:٥١١٣حَدَّثَنَا خَلَفُ بْنُ الْوَلِيدِ حَدَّثَنَا أَبُو مَعْشَرٍ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

مَرَّ رَسُولُ اللهِ ﷺ بِطَعَامٍ وَقَدْ حَسَّنَهُ صَاحِبُهُ فَأَدْخَلَ يَدَهُ فِيهِ فَإِذَا طَعَامٌ رَدِيءٌ فَقَالَ بِعْ هَذَا عَلَى حِدَةٍ وَهَذَا عَلَى حِدَةٍ فَمَنْ غَشَّنَا فَلَيْسَ مِنَّا