It is narrated from Sayyidah Aisha (may Allah be pleased with her) that Sayyiduna Abu Bakr (may Allah be pleased with him) cursed one of his slaves, so the Prophet (peace and blessings be upon him) said: "Abu Bakr! Does a Siddiq also curse? Never, by the Lord of the Ka'bah." The Prophet (peace and blessings be upon him) repeated this two or three times. Sayyiduna Abu Bakr (may Allah be pleased with him) freed several of his slaves that day, then presented himself before the Prophet (peace and blessings be upon him) and said: I will never curse again.

It is narrated from Sayyiduna Samurah (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "Do not curse one another with Allah's curse, nor say 'May Allah's wrath be upon you,' nor say 'You will enter Hell.'"

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that it was said to the Prophet (peace and blessings of Allah be upon him): O Messenger of Allah! Pray against the polytheists. The Prophet (peace and blessings of Allah be upon him) said: "Allah Almighty has not sent me as one who curses, but rather He has sent me as a mercy."

Hammam says that we were with Sayyiduna Hudhayfah (may Allah be pleased with him) when it was said to him that a certain person conveys people's words to Sayyiduna Uthman (may Allah be pleased with him). Sayyiduna Hudhayfah (may Allah be pleased with him) said: I heard the Prophet (peace and blessings of Allah be upon him) say: "The tale-bearer will not enter Paradise."

Narrated from Sayyida Asma bint Yazid (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: "Shall I not tell you about the best among you?" The companions said: "Why not?" The Prophet (peace be upon him) said: "Those whom, when you see them, you are reminded of Allah." Then he said: "Shall I not tell you who the worst among you are?" The companions said: "Why not, do tell us." The Prophet (peace be upon him) said: "The slanderers, those who create discord among loved ones, and those who cause trouble and difficulties for innocent people are the worst."

It is narrated from Sayyiduna Ali bin Abi Talib (may Allah be pleased with him), he said: The one who speaks obscenely and the one who spreads it, both are equal in sin.

It is narrated from Shibl bin ‘Awf (may Allah have mercy on him), he said: It used to be said: Whoever hears an obscene word and then spreads it, he is like the one who exposes that evil.

It is narrated from Ata bin Abi Rabah (may Allah have mercy on him), his stance was that a person who publicizes adultery should be given a severe exemplary punishment. He said that such a person spreads immorality.

It is narrated from Sayyiduna Ali (may Allah be pleased with him), he said: Do not be hasty, do not spread things, and do not disclose secrets, because after you there will be a trial that will put you in difficulty and a long period of tribulations that will overwhelm a person.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them) that he said: When you begin to mention the faults of your companion, first take a look at your own faults.