The Book of Tribulations and Portents of the Last Hour
كتاب الفتن وأشراط الساعة
Read the English translation first, with the original Arabic directly underneath.
The Conquest Of Constantinople, The Emergence Of The Dajjal And The Descent Of 'Eisa bin Mariam
Abdullah b. Safwan reported the Mother of the Faithful as saying that Allah's Messenger (ﷺ) said:
They would soon seek protection in this House, viz. Ka'ba (the defenceless), people who would have nothing to protect themselves in the shape of weapons or the strength of the people. An army would be sent to fight (and kill) them and when they would enter a plain ground the army would be sunk in it. Yusuf (one of the narrators) said: It was a people of Syria (hordes of Hajjaj) who had been on that day coming towards Mecca for an attack (on 'Abdulllah b. Zubair) and Abdullah b. Safwan said: By God, it does not imply this army.
سَيَعُوذُ بِهَذَا الْبَيْتِ - يَعْنِي الْكَعْبَةَ - قَوْمٌ لَيْسَتْ لَهُمْ مَنَعَةٌ وَلاَ عَدَدٌ وَلاَ عُدَّةٌ يُبْعَثُ إِلَيْهِمْ جَيْشٌ حَتَّى إِذَا كَانُوا بِبَيْدَاءَ مِنَ الأَرْضِ خُسِفَ بِهِمْ