Besieged at Toor

The Messenger of Allah (sal Allahu alaihi wa sallam) said: “Then Allah will send Yajuj and Majuj, and they will swarm down from every slope. The first of them will pass by the Lake of Tiberias, and will drink some of its water; the last of them will pass by it and say, ‘There used to be water here.’ Eesa, the prophet of Allah, and his Companions will be besieged until a bull’s head will be dearer to them than one hundred dinars are to you nowadays.” [Muslim: Kitab al-Fitan wa Ashrat al-Sa’ah]

Once Eesa (alaihis salam) has safely taken the Muslims to At-Toor on Allah’s instructions, Yajuj and Majuj will swarm down in great numbers. At-Toor is the mountain sworn by in the Quran and the one mentioned in Musa (alaihis salam)’s story multiple times. It perhaps corresponds to Mount Sinai in Egypt, though not all parties agree on this.
 
Yajuj and Majuj will be so many that they will finish the water of the Lake of Tiberias. The Lake of Tiberias is also known as the Sea of Galilee and is in present day Israel.

The Muslims on the mountain of Toor will become very hard pressed due to the siege that Yajuj and Majuj will have put them under.