Taking back sold goods

Sometimes a buyer wishes to return a thing he has bought. In such a case, the seller is not bound to take it back, but if he does it in view of the buyer's need or embarrassment, it would be an act of very high merit. Abu Hurairah has quoted the following Prophetic words: -

"He who takes back a thing sold has his sins pardoned on the Day of Judgement." (Abu Daud)