The swearing that was forbidden

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Indeed, a false oath makes goods sell and strips earnings of their blessing."

The Prophet (peace and blessings be upon him) said: "Beware of swearing many oaths, for through it wealth increases somewhat at first and then diminishes."

The Prophet (peace and blessings be upon him) said: "Beware of swearing many oaths in sales, for through it wealth appears to increase at first and then diminishes."

Zadhan said: Sayyiduna Ali (may Allah be pleased with him) would come to the market, give the greeting of peace and say: "O traders! Beware of swearing many oaths in sales, for through it the goods do get sold, but the blessing is lost."

Sayyiduna Ibn Mas'ud (may Allah be pleased with him) said: "Swearing oaths is a means of increasing sales and of destroying earnings."

Sayyiduna Qays (may Allah be pleased with him) said: We used to trade in Madinah and called ourselves samasirah (brokers). Then the Prophet (peace and blessings be upon him) came to us and called us by a name better than the one we used for ourselves. He (peace and blessings be upon him) said: "O traders! Idle talk and oath-taking occur in this business, so make up for it with charity."

Something similar is narrated from the Prophet (peace and blessings be upon him).

The Prophet (peace and blessings be upon him) said: "Swearing an oath leads either to breaking it or to regret (one of these two will certainly happen)."

The Prophet (peace and blessings be upon him) said: "There are three kinds of people to whom Allah Almighty will not speak on the Day of Resurrection, nor will He purify them of their sins, and He will give them a painful punishment: the one who reminds others of his favors, the one who lets his lower garment hang below his ankles, and the one who sells his goods by swearing false oaths."

Sayyiduna Abu Hurayrah (may Allah be pleased with him) said: "Lying makes a sale attractive and brisk; it gets the goods sold but destroys the earnings."