It is narrated from Hazrat Ash'ath (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever does not thank people does not thank Allah either.

Shafeeq bin Salamah says that once Hazrat Ibn Mas’ud (may Allah be pleased with him) narrated three hadiths to us, one of which was that the Noble Prophet (peace and blessings be upon him) said: Whoever seizes the wealth of a Muslim by swearing a false oath will meet Allah in such a state that Allah will be angry with him. Meanwhile, Hazrat Ash’ath (may Allah be pleased with him) also arrived and asked,“Which hadiths did Abu Abdur Rahman narrate?”We told him. Hazrat Ash’ath said,“This command was revealed regarding my incident, the details of which are as follows: There was some land jointly owned by me and my cousin. My cousin denied my share, so I brought him to the service of the Noble Prophet (peace and blessings be upon him). The Noble Prophet (peace and blessings be upon him) asked me, ‘Do you have any witnesses?’ I replied, ‘No.’ The Noble Prophet (peace and blessings be upon him) said to the Jew, ‘Then you swear an oath.’ I said, ‘O Messenger of Allah! He will take my property by swearing an oath.’ Upon this, Allah revealed this verse up to the end: ‘Those who exchange Allah’s covenant and their oaths for a small price...’”

It is narrated from Hazrat Ash'ath (may Allah be pleased with him) that a man from the tribe of Kindah and a man from Hadhramaut brought their dispute regarding a piece of land in Yemen to the service of the Noble Prophet (peace and blessings be upon him). The man from Hadhramaut said, "O Messenger of Allah! He and his father together have usurped my land." The Kindite said, "O Messenger of Allah! This is my land which I inherited from my father." The man from Hadhramaut said, "O Messenger of Allah! Make him swear an oath that he does not know that this is my land and my father's land which his father had usurped." The Kindite was ready to swear the oath, so the Noble Prophet (peace and blessings be upon him) said, "Whoever acquires any wealth through his oath will meet Allah on the Day of Resurrection in the state that he will be afflicted with leprosy." Hearing this, the Kindite said, "This land is his and his father's."