Mishkat al-Masabih 27 Fitan كتاب الفتن 102

وَعَنْ أَبِي بَكْرَةَ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَا يَدْخُلُ الْمَدِينَةَ رُعْبُ الْمَسِيحِ الدَّجَّالِ لَهَا يَوْمَئِذٍ سَبْعَةُ أَبْوَابٍ عَلَى كُلِّ بَابٍ مَلَكَانِ» رَوَاهُ البُخَارِيّ

Abu Bakra reported the Prophet as saying, “The terror of the antichrist[*] will not enter Medina, which will on that day have seven gates with two angels at each gate.” *i.e., the dajjal Bukhari transmitted it.