The matter will return as it began, until all faith is gathered in Madinah

It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) that he said: Soon neither a dirham nor any grain (qafiz) will come to the people of Iraq. The people asked: O Abu Abdullah! For what reason will that be? He said: Because of the non-Arabs; they will stop it. Then he remained silent for a little while and said: Soon neither a dinar nor any grain (mudd) will come to the people of Syria. The people asked: For what reason will that be? He said: Because of the Romans; they will stop it. Then he said that the Messenger of Allah (peace and blessings be upon him) said: "There will be a caliph in my Ummah who will give out wealth in handfuls and will not count it." Then he said: By the One in whose hand is my soul! This matter (the religion) will certainly return just as it began; every believer will return to Madinah just as it began from there, until all faith is gathered in Madinah. Then he said that the Messenger of Allah (peace and blessings be upon him) said: "No one leaves Madinah out of aversion to it except that Allah brings in his place someone better than him. And some people will hear news of prosperity, plenty and low prices, and they will follow it (leaving Madinah), whereas Madinah is better for them, if only they knew."
This hadith is sahih (authentic) on the condition of Muslim, but they did not record it with this wording. Imam Muslim only recorded the narration of Dawud bin Abi Hind from Abu Nadrah, from Abu Sa'id, from the Prophet (peace and blessings be upon him): "At the end of time there will be a caliph who will give out wealth and will not count it", and there is a hidden defect ('illah) in it.

It is narrated from Sayyiduna Jabir or Sayyiduna Abu Sa'id (may Allah be pleased with them both) that the Prophet of Allah (peace and blessings be upon him) said: "In the last period of this Ummah there will be a caliph who will distribute wealth and will not count it."

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that he said: A time will come upon the people when a man will come to a grave, lie down on it and say: If only I were in the place of the one in this grave! He will not say this out of longing to meet Allah, but because of the severity of the trials and afflictions he will be seeing (in the world).
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but the two Shaykhs did not record it.

It is narrated from Sayyiduna Kurz bin Alqamah al-Khuza'i (may Allah be pleased with him) that a Bedouin asked: O Messenger of Allah! Is there an end point for Islam? He (peace and blessings be upon him) said: "Yes. Any household of the Arabs or non-Arabs for whom Allah intends good, He brings Islam into them." The Companions asked: Then what will happen, O Messenger of Allah? He (peace and blessings be upon him) said: "Then tribulations will break out as though they were the shadows of dark clouds." That Bedouin said (in astonishment): Never, O Messenger of Allah! The Prophet (peace and blessings be upon him) said: "By the One in whose hand is my soul! In those tribulations you will become like black serpents that raise their heads to strike, pouncing on one another, and some of you will strike the necks of others."
This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "You will follow the ways of those before you so completely, span by span and cubit by cubit, that if one of them had entered a lizard's hole, you too would enter it; and even if one of them had had intercourse with his wife on the road, you too would do the same."
This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it with this wording.