Reports on silence and guarding the tongue

Sayyiduna Anas (may Allah be pleased with him) relates: On the day of the Battle of Uhud a man from among us was martyred. A stone was found tied to his stomach, which had been tied there because of hunger. His mother, wiping the dust from his face, said: "O my son! Congratulations to you on Paradise." The Prophet (peace and blessings be upon him) said: "How do you know? Perhaps he used to speak about things that did not concern him, and to withhold things (the giving of which) would have caused him no harm." (Allamah al-Haythami says:) I say: Al-Tirmidhi recorded part of this narration.
Abu Ya'la recorded it; its chain contains Yahya bin Ya'la al-Aslami, and he is da'if (weak).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: I warn you against idle talk. It is enough for any one of you to speak as much as conveys his need.
Al-Tabarani recorded it; its chain contains al-Mas'udi, who suffered from mental confusion (ikhtilat).

It is reported from him (that is, Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him)) that he said: "On the Day of Resurrection, the person with the most sins will be the one who engaged most in (talk about) falsehood."
Al-Tabarani recorded it, and its narrators are thiqat (trustworthy).

It is reported from him (that is, Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him)) that he said: "By the One besides whom there is no god, there is nothing on the face of the earth more in need of long imprisonment than the tongue."
Al-Tabarani recorded it with several chains, and its narrators are thiqat (trustworthy).

Sayyidah Umm Atiyyah (may Allah be pleased with her) relates: The Prophet (peace and blessings be upon him) used to command us to guard our private parts and our tongues, and he (peace and blessings be upon him) used to say: "These two will lead you women (to Hell) and will not bring you back from there."
Al-Tabarani recorded it; its chain contains Abd al-Rahman bin Amr bin Jabalah, and he is matruk (abandoned).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: "Beware of harsh and difficult speech!"
Al-Tabarani recorded it; its chain contains al-Mas'udi, who suffered from mental confusion (ikhtilat), and the narrator Awn did not meet Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him).