The Dajjal is barred from Madinah

The Messenger of Allah ﷺ narrated to us a lengthy narration about the Dajjal, and among what he narrated to us was that he said: "The Dajjal will come, while it is forbidden for him to enter the entrances of Medina, some of the salt flats that are in Medina. On that day a man will go out to him who is the best of people, or among the best of people, and he will say: I bear witness that you are the Dajjal about whom the Messenger of Allah ﷺ narrated his narration to us. The Dajjal will say: What do you think—if I kill this man and then bring him back to life, will you doubt the matter? They will say: No. So he will kill him and then bring him back to life. When he brings him back to life, the man will say: By Allah, I have never had clearer insight than I have today. The Dajjal will say: I will kill him, but he will not be given power over him."

حَدَّثَنَا رَسُولُ اللَّهِ ﷺ حَدِيثًا طَوِيلاً عَنِ الدَّجَّالِ، فَكَانَ فِيمَا حَدَّثَنَا بِهِ أَنْ قَالَ: «يَأْتِي الدَّجَّالُ وَهُوَ مُحَرَّمٌ عَلَيْهِ أَنْ يَدْخُلَ نِقَابَ الْمَدِينَةِ، بَعْضَ السِّبَاخِ الَّتِي بِالْمَدِينَةِ، فَيَخْرُجُ إِلَيْهِ يَوْمَئِذٍ رَجُلٌ هُوَ خَيْرُ النَّاسِ أَوْ مِنْ خَيْرِ النَّاسِ، فَيَقُولُ: أَشْهَدُ أَنَّكَ الدَّجَّالُ الَّذِي حَدَّثَنَا عَنْكَ رَسُولُ اللَّهِ ﷺ حَدِيثَهُ، فَيَقُولُ الدَّجَّالُ: أَرَأَيْتَ إِنْ قَتَلْتُ هَذَا ثُمَّ أَحْيَيْتُهُ هَلْ تَشُكُّونَ فِي الأَمْرِ؟ فَيَقُولُونَ: لاَ، فَيَقْتُلُهُ ثُمَّ يُحْيِيهِ، فَيَقُولُ حِينَ يُحْيِيهِ: وَاللَّهِ مَا كُنْتُ قَطُّ أَشَدَّ بَصِيرَةً مِنِّي الْيَوْمَ، فَيَقُولُ الدَّجَّالُ: أَقْتُلُهُ، فَلاَ أُسَلَّطُ عَلَيْهِ».