03-21-2014, 05:09 PM
In market control and trade affairs:
Abu Huraira (Allah be pleased with him) reported Allah's
Messenger (ﷺ) as saying:
Do not meet the merchant in the way and enter into business
transaction with him, and whoever meets him and buys from him (and in case it
is done, see) that when the owner of (merchandise) comes into the market (and
finds that he has been paid less price) he has the option (to declare the
transaction null and void).
Reference : Sahih
Muslim 1519 b
In-book reference : Book
21, Hadith 23
USC-MSA web (English) reference : Book 10, Hadith 3627
(deprecated numbering scheme)