Dhu al-Urf will gather a great army from the tribes of polytheism

It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that a man from among the enemies of the Muslims will appear in al-Andalus, who will be called "Dhu al-Urf". He will gather a huge army from the idolatrous tribes, about which the people of al-Andalus will be certain that they have no strength to face it. So those among the Muslims who have the means will board ships and leave from there, crossing over to Tangier, while the weak people and the common folk will remain behind, having no ships available for crossing. Then Allah, the Mighty and Majestic, will send a mountain goat and will dry up (make shallow) the sea for them. The mountain goat will cross the sea in such a way that the water will not even cover its hooves. When the people see it, they will call out: "The mountain goat! Follow it!" So all the people will cross the sea following in its tracks. Then the sea will return to its original state, and the enemy will cross over by boarding ships. When the people of Ifriqiyah sense the approach of these enemies, they will all flee and take refuge in al-Fustat (Egypt). That enemy will advance until it encamps in the area from Tarnut to the Pyramids of Egypt, which is a distance of five barids (post stages). They will spread great evil there. Then an army of the Muslims will come out at the bridge with its banner raised to confront them, and Allah will help the Muslims against them. The Muslims will inflict a crushing defeat upon them and will keep killing them up to Lubiyah, a distance of ten nights' journey. The people of al-Fustat will use their carts and war equipment as fuel for seven years. Dhu al-Urf will escape being killed, and he will have a book with him which he will look into only when he is defeated. In it he will find mention of Islam, and that he is commanded in it to enter into peace. So he will seek safety for himself and for those of his companions who came with him and were willing to accept Islam. Then he will accept Islam and join the Muslims. Then the following year a man from Abyssinia will come who will be called "Isbis", who will have gathered a mighty army. The Muslims will flee from him from Aswan until no Muslim remains in Aswan or its nearby areas, and all of them will take refuge in al-Fustat. Isbis will encamp with his army at "Manf" (Memphis), which is at a distance of one barid (post stage) from al-Fustat. Then the banner of the Muslims will be raised at the bridge to confront them, and Allah will grant the Muslims victory over them. The Muslims will kill them and take them captive, until an Abyssinian captive will be sold for an ordinary cloak.
This hadith is sahih (authentic) as mawquf (a Companion's statement) on the condition of the two Shaykhs (Bukhari and Muslim), and it serves as a foundation for knowing about the trials that will occur in Egypt, but they did not record it. And "Manf" is the same place about which Mansur al-Faqih (may Allah have mercy on him) says: "Yesterday I asked the palaces of Ayn Shams and Manf about their inhabitants, where they had departed to; but they did not answer me with even a single letter."

It is narrated from Abd al-Rahman bin Bishr al-Ansari (may Allah have mercy on him) that a man came to Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), leaned over towards him and said: "O Abu Abd al-Rahman! When will I go astray despite having knowledge?" He replied: "When rulers are placed over you such that if you obey them, they will admit you into the Fire, and if you disobey them, they will kill you."
This report is mawquf (a Companion's statement) and its chain is sahih (authentic), but the two Shaykhs (Bukhari and Muslim) did not record it. Al-Hakim (may Allah have mercy on him) said: These are reports that Abdullah bin Wahb mentioned in (his book) al-Malahim; I obtained them through a higher chain, so I have recorded them, even though they are not musnad (traced back to the Prophet).

It is narrated from Sayyiduna Abu Tha'labah al-Khushani (may Allah be pleased with him) that he said: "When you see Sham as the dining spread of a single man and his household (i.e. one family dominating the resources of Sham), then at that time will be the conquest of Constantinople."