The Book of Pilgrimage
15/87. Chapter:
Al-Madinah is protected against the plague and the Dajjal entering it
Sahih Muslim
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نُعَيْمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " عَلَى أَنْقَابِ الْمَدِينَةِ مَلاَئِكَةٌ لاَ يَدْخُلُهَا الطَّاعُونُ وَلاَ الدَّجَّالُ " .
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying: There are at the approaches of Medina angels so that plague and the Dajjal shall not penetrate into it.
Reference : Sahih Muslim 1379In-book reference : Book 15, Hadith 554USC-MSA web (English) reference : Book 7, Hadith 3186