The Hour will not come until there are ten signs

It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him); he said: I heard the Messenger of Allah (peace and blessings be upon him) saying: "The Hour will not be established until ten signs (appear): a sinking of the earth in the East, a sinking of the earth in the West, a sinking of the earth in the Arabian Peninsula, the emergence of the Dajjal, the smoke, the descent of Isa bin Maryam (peace be upon him), Ya'juj and Ma'juj (Gog and Magog), the beast that will come out of the earth (Dabbat al-Ard), the rising of the sun from its west, and a fire that will come out of the depths of Aden which will drive the people towards the place of gathering; it will round up even the tiny particles and the ants and gather them (at the place of gathering)."
This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it.

It is narrated from Sayyiduna Umar bin al-Khattab (may Allah be pleased with him); he said: "By the Lord of the Ka'bah! I have come to know when the Arabs will perish: (they will perish) when the one who takes charge (as ruler) of their affairs is a person who neither kept the company of the Messenger of Allah (peace and blessings be upon him) nor experienced (and reformed) the affairs of the Jahiliyyah (and their evils)."
This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it.