The spread of false testimony is among the signs of the Hour

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The protected zone of an ancient well is fifty cubits, and the zone of a newly dug well is twenty-five cubits."

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that he heard the Prophet (peace and blessings be upon him) say: "The feet of one who gives false testimony will not even move from their place (on the Day of Resurrection) before Allah Almighty makes the Fire obligatory for him."
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Tariq bin Shihab that he said: We were sitting with Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), and he said that the Messenger of Allah (peace and blessings be upon him) said: "Close to the Hour, greetings of peace will be given only to particular people (that is, on the basis of acquaintance), trade will become so widespread that a woman will help her husband in trade, ties of kinship will be severed, false testimony will become widespread, and true testimony will be concealed."
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that nothing was more hateful to the Messenger of Allah (peace and blessings be upon him) than lying. Whenever the Messenger of Allah (peace and blessings be upon him) perceived even a little lying in someone, he would keep that person distant from his heart until he renewed his repentance before Allah.
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.