You are witnesses over one another through good and bad praise

Sayyiduna Abu Bakr bin Abi Zuhayr al-Thaqafi (may Allah be pleased with him) narrates from his father, who said: I heard the Messenger of Allah (peace and blessings be upon him) saying in his sermon: "O people! Soon you will distinguish the people of Paradise from the people of Hellfire" - or he said: "you will distinguish the best among you from the bad ones." A man asked: O Messenger of Allah! By what means? He (peace and blessings be upon him) said: "By good praise and bad praise, for you are witnesses over one another."
This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it.

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "In the last period of this Ummah there will be men who will ride on large saddles (soft cushions) until they come to the doors of their mosques. Their women will be clothed yet naked; their heads will be like the humps of Bactrian camels. Curse them, for they are accursed. If there were another nation after you, these women would serve them just as the women of the nations before you served you." I asked my father: What are al-mayathir? He said: It means large saddles.
This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "In the last age, men will come forth in this Ummah who will have whips like the tails of cattle; they will begin their mornings in the displeasure of Allah and their evenings in His wrath."
This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it.

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that, mentioning tribulation, he said: "Indeed, a man leaves his house with his religion with him, then he returns with nothing of his religion remaining with him. He goes to a (worldly) person who has no power to bring benefit or harm either to him or to himself, and swears by Allah before him saying: You are such and such, and such and such (flattering him). So he does not fulfil any of his need, yet he returns having made Allah angry with him."
This hadith is sahih (authentic) on the condition of the two Shaykhs, but they did not record it.