CHAPTER: PROHIBITION OF TAKING OATH IN BUSINESS TRANSACTION
No. 3913
Abu Huraira (Allaah be pleased with him) said he heard Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Swearing produces a ready sale for a commodity, but blots out the blessing.
No. 3914
Abu Qatada al-Ansari (Allaah be pleased with him) reported he heard Allaah's Messenger (sallAllaahu alayhi wa sallam) say: Beware of swearing; it produces a ready sale for a commodity, but blots out the blessing.