Angels protecting the entrances to Medina from plague and the Dajjal;

Sahih Muslim

007.3186 – Abu Huraira (Allah be pleased with him) reported Allah’s Messenger (may peace be upon him) as saying: There are at the approaches of Medina angels so that plague and the Dajjal shall not penetrate into it.

Dajjal’s attempt to enter Medina in vain;

Sahih Muslim

007.3187 – Abu Huraira (Allah be pleased with him) reported Allah’s Messenger (may peace be upon him) as saying: Dajjal will come from the eastern side with the intention of attacking Medina until he will get down behind Uhud. Then the angels will turn his face towards Syria and there he will perish.

Angels blocking the entrances to Medina from the Dajjal and of him settling on a barren land near Medina where every unbeliever will go to him after the land therein rocks thrice;

Sahih Muslim

041.7032 – Anas b. Malik reported that Allah’s Messenger (may peace be upon him) said: There will be no land which would not be covered by the Dajjal but Mecca and Medina, and there would no passage out of the passages leading to them which would not be guarded by angels arranged in rows. Then he (the Dajjal) would appear in a barren place adjacent to Medina and it would rock three times that every unbeliever and hypocrite would get out of it towards him.

That the angels are protecting the entries of Madina from plague and the Dajjal;

Malik’s Muwatta

045.45.4.16 – Yahya related to me from Malik from Nuaym ibn Abdullah al-Mujmir that Abu Hurayra said, “The Messenger of Allah, may Allah bless him and grant him peace, said, ‘There are angels at the entries of Madina, and neither plague nor the Dajjal will enter it.’ “