It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: By swearing a false oath, goods may be sold, but the blessing is erased.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9349
Hadith Gradingحکم دارالسلام:حدیث صحیح ، وھذا إسناد حسن ، خ : 2087 ، م : 1606