Muhammad bin Yahya bin Haban reported,
This is my grandfather, Munqidh bin Amr. He was a man who had suffered a head injury that damaged his tongue, yet he would not give up trading, and he was constantly being cheated. So he came to the Prophet ﷺ and mentioned this to him.The Prophet ﷺ said to him, "When you make a transaction, say, 'No deception.' Then you have the option for three nights regarding any item you have bought. If you are pleased with it, keep it, and if you are displeased, return it to its owner."
Ibn Majah 2355
Hasanحدثنا أبو بكر بن أبي شيبة حدثنا عبد الأعلى عن محمد بن إسحق
عن محمد بن يحيى بن حبان قال
هو جدي منقذ بن عمرو وكان رجلا قد أصابته آمة في رأسه فكسرت لسانه وكان لا يدع على ذلك التجارة وكان لا يزال يغبن فأتى النبي ﷺ فذكر ذلك له فقال له إذا أنت بايعت فقل لا خلابة ثم أنت في كل سلعة ابتعتها بالخيار ثلاث ليال فإن رضيت فأمسك وإن سخطت فارددها على صاحبها
Its takhrij, [hasan] Bukhari narrated it in Tarikh al-Kabir, 8/17-18, from the hadith of Abdul-Ala, who said, Muhammad bin Ishaq narrated to us, saying, Muhammad bin Yahya bin Habban narrated to me, with this chain. However, there is doubt about whether he actually heard it from his grandmother. The hadith has many corroborating witnesses in Bukhari and Muslim and others, without specifying whether it was Habban bin Munqidh or Munqidh bin Amr. 