It is narrated from Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: "Do you know what backbiting is?" The noble companions, may Allah be pleased with them, said, "Allah and His Messenger know best." He, peace and blessings be upon him, said: "It is your mentioning about your brother something which he dislikes." It was asked, "O Messenger of Allah, tell me, if what I say is actually present in my brother?" He, peace and blessings be upon him, said: "If what you say is in him, then you have backbitten him, and if what you say is not in him, then you have slandered him." In another narration: "When you say something about your brother which is in him, then you have backbitten him, and when you say something which is not in him, then you have slandered him." Narrated by Muslim.

Narrated from Aisha (may Allah be pleased with her) that a man sought permission to enter upon the Prophet (peace and blessings of Allah be upon him), so the Prophet (peace and blessings of Allah be upon him) said: "Give him permission to enter, for he is a bad man of his people." When he sat down, the Prophet (peace and blessings of Allah be upon him) showed happiness on his face and smiled at him. When the man left, Aisha (may Allah be pleased with her) said, "O Messenger of Allah! You said such and such about him, then (when he came) you showed happiness on your face and smiled at him." The Messenger of Allah (peace and blessings of Allah be upon him) said: "When did you ever find me to be foul-mouthed? For on the Day of Resurrection, the worst in status before Allah will be the one whom people leave alone to avoid his evil." In another narration: "To avoid his foul speech." Agreed upon.

Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) said: "All the sins of my Ummah are forgivable except those who commit sins openly. And committing sins openly is that a person does an act (of sin) at night, then in the morning he goes around saying: O so-and-so! I did such and such last night, even though Allah had concealed it for him, and he spent the night while his Lord had covered him, but when morning comes, he removes Allah's covering from himself." Agreed upon. And the hadith narrated from Abu Huraira (may Allah be pleased with him): "Whoever believes in Allah..." is mentioned in the chapter of Hospitality.

Anas (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: "Whoever gives up lying, even though he was in the wrong, a house will be built for him on the edge of Paradise. And whoever abandons arguing while being in the right, a house will be built for him in the middle of Paradise. And whoever improves his character, a house will be built for him in the highest part of Paradise." Imam Tirmidhi has narrated this hadith and called it Hasan, and likewise it is in Sharh al-Sunnah and Misbahih, he said: This hadith is Gharib. Its chain is weak. Narrated by al-Tirmidhi and in Sharh al-Sunnah.

Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Do you know what thing will cause most people to enter Paradise?" (Then he said:) "The fear of Allah and good character. Do you know what thing will cause most people to enter Hell?" (Then he said:) "Two things: the mouth and the private parts." Its chain is authentic. Narrated by Tirmidhi and Ibn Majah.

Bilal bin Harith (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, a person utters a good word and he does not realize its significance, yet because of it Allah writes His pleasure for him until the Day of Resurrection. And indeed, a person utters a bad word and he does not realize its importance, so because of it Allah writes His displeasure for him until the Day of Resurrection." Sharh al-Sunnah. And Imam Malik, Tirmidhi, and Ibn Majah have narrated a similar report. Its chain is Hasan. Narrated in Sharh al-Sunnah, Malik, Tirmidhi, and Ibn Majah.

Bahz bin Hakim narrates from his father, and he from his grandfather, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Woe to the person who lies while speaking in order to make people laugh; woe to him, woe to him." Its chain is Hasan. Narrated by Ahmad, al-Tirmidhi, Abu Dawood, and al-Darimi.

Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, a servant speaks merely to make people laugh, and because of that he falls into Hell farther than the distance between the earth and the sky. And he does not slip as much by the slipping of his feet as he slips by the slipping of his tongue." Its chain is weak. It was narrated by Al-Bayhaqi in Shu'ab al-Iman.

Abdullah bin Amr, may Allah be pleased with him, reports that the Messenger of Allah, peace and blessings be upon him, said: "Whoever remains silent has attained salvation." Its chain is good. Narrated by Ahmad, al-Tirmidhi, al-Darimi, and al-Bayhaqi in Shu'ab al-Iman.

Uqbah bin Amir (may Allah be pleased with him) narrates: I met the Messenger of Allah (peace and blessings of Allah be upon him) and I asked, "What is the means of salvation?" He (peace and blessings of Allah be upon him) said: "Control your tongue, let your house be sufficient for you, and weep over your sins." Weak, narrated by Ahmad and Tirmidhi.