Sayyiduna Abu al-Darda' (may Allah be pleased with him) narrates this saying of the Prophet (peace and blessings be upon him): "Part of a man's understanding is that he adopts gentleness (moderation) in his livelihood."
Ahmad recorded it; its chain contains Abu Bakr bin Abi Maryam, whose memory had become confused (ikhtilat).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البيوع / 6308
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«اخرجه احمد فى المسند (194/5) ، أخرجه مسند أحمد برقم: 21188»