Bismillah hir-Rahman nir-Rahim
Mafhum-e-Hadith: kharid wa farokht ( Business) mein barkat
Hakim bin Hizam Radiallahu anhu se rivayat hai ki Rasoollallah Sallallahu Alaihi Wasallam ne farmaya kharidney aur bechney walon ko us waqt tak ikhtiyaar hai jab tak dono juda na ho jaye phir agar dono ne sachchaaii se kaam liya aur har baat saaf saaf khol di to unkey kharid wa farokht (Business) mein barkat hoti hai lekin agar koi baat chupa kar rakhi ya jhoot kahi to unki barkat khatam kar di jati hai
Sahih Bukhari, Vol 3, 2079
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Narrated Hakim bin Hizam Radiallahu anhu : Allah's Apostle Sallallahu Alaihi Wasallam said, "The seller and the buyer have the right to keep or return goods as long as they have not parted or till they part; and if both the parties spoke the truth and described the defects and qualities (of the goods), then they would be blessed in their transaction, and if they told lies or hid something, then the blessings of their transaction would be lost."
Sahih Bukhari, Vol 3, Book 34, No. 293: