It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) and Sayyiduna Ibn Abbas (may Allah be pleased with them both) that they said: The Messenger of Allah (peace and blessings be upon him) addressed us in a sermon; then the narrator mentioned a long hadith, in which there is also (the saying): "And whoever cheats a Muslim in buying or selling is not one of us, and he will be gathered on the Day of Resurrection with the Jews, because they are the people who cheat the Muslims the most." This is a mawdu' (fabricated) hadith.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب البيوع / 1425
Hadith Gradingمحدثین:إسناده موضوع
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: هَذَا حَدِيثٌ مَوْضُوعٌ . » «أخرجه المطالب العالية لابن حجر برقم: 245»