(27) باب النَّهْىِ عَنِ الْحَلِفِ، فِي الْبَيْعِ
Abu Qatada al-Ansari (Allah be pleased with him) reported he heard Allah's Messenger (ﷺ) say:
Beware of swearing; it produces a ready sale for a commodity, but blots out the blessing. (IT)
Reference (IT): Sahih Muslim 1607 (IT)
In-book reference (IT): Book 22, Hadith 165 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3914 (IT)