Mishkat al-Masabih 10 The Rites of Pilgrimage كتاب المناسك 230

وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «عَلَى أَنْقَابِ الْمَدِينَةِ مَلَائِكَةٌ لَا يَدْخُلُهَا الطَّاعُونُ وَلَا الدَّجَّالُ»

He reported God’s messenger as saying, “There are angels on the mountain roads of Medina, so neither plague nor the dajjal can enter it.” Bukhari and Muslim.