Another narration is: A bedouin came to the Prophet (PBUH) and asked him: "O Messenger of Allah, what are the cardinal sins?" He (PBUH) replied, "Associating anything with Allah in worship." The man asked: "(What is) next?" The Messenger of Allah (PBUH) replied, "Al-Yamin Al-Ghamus." He asked: "What do you mean by Al-Yamin Al-Ghamus?" The Messenger of Allah (PBUH) replied, "Swearing falsely to usurp the property of a Muslim."
Commentary: "Ghamus" means to drown. A false oath drowns one in sin. For this reason, it is called Al-Yamin Al-Ghumus, the oath that drowns one in sin. Is it open to expiation? Some religious scholars believe that it is, while others think it is not, because in their opinion it is a lie which is employed to deprive somebody of his wealth and property. For this reason, they say that in such case one should beg pardon from Allah and arrange to restore the wealth and property to the victim. This seems to be the more appropriate course for it because mere repentance cannot remit this sin. It is necessary to rectify the wrong and compensate the victim.