During the time of the Messenger of Allah ﷺ, there was a man who used to engage in buying and selling, but his judgment was weak. His family came to the Prophet of Allah ﷺ and said, "Prophet of Allah, place this man under interdiction, for he conducts transactions while his judgment is weak."The Prophet ﷺ summoned him and forbade him from trading.The man said, "Prophet of Allah, I cannot bear to give up trading."The Messenger of Allah ﷺ said, "If you will not abandon trading, then say, 'Hand to hand, and no deception.'"
أن رجلا على عهد رسول الله ﷺ كان يبتاع، وفي عقدته ضعف، فأتى أهله نبي الله ﷺ، فقالوا: يا نبي الله، احجر على فلان؛ فإنه يبتاع، وفي عقدته ضعف، فدعاه النبي ﷺ، فنهاه عن البيع، فقال: يا نبي الله إني لا أصبر عن البيع، فقال رسول الله ﷺ: إن كنت غير تارك البيع فقل: هاء وهاء، ولا خلابة.
Abu Dawud (3501), Ibn Jarud in al-Muntaqa (568), Ibn Hibban (5049), Hakim (4/101), Bayhaqi (6/62), and Ahmad (13276) all narrated it from the hadith of Abdul-Wahhab bin Ata Khafaf, who said, Saeed bin Abu Aruba told us, from Qatada, from Anas, and he mentioned it.Its chain is hasan because of Abdul-Wahhab Khafaf, for there is disagreement about him, though he is hasan al-hadith, and he has been corroborated. However, his teacher Saeed bin Abu Aruba became confused in his memory toward the end of his life, but Abdul-Wahhab Khafaf is among those who heard from him before that confusion set in.Tirmidhi (1250), Ibn Majah (2354), and Nasai (4485) all narrated it through the route of Abdul-Ala bin Abdul-Ala, from Saeed bin Abu Aruba, with the same wording. Abdul-Ala is among those who heard from Saeed after the confusion had set in, but the corroboration of Abdul-Wahhab, who heard from him before the confusion, shows that Saeed was not confused in this particular hadith.