Mishkat al-Masabih 27 Fitan كتاب الفتن 45

عَنْ مُعَاذِ بْنِ جَبَلٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «عُمْرَانُ بَيْتِ الْمَقْدِسِ خَرَابُ يَثْرِبَ وَخَرَابُ يَثْرِبَ خُرُوجُ الْمَلْحَمَةِ وَخُرُوجُ الْمَلْحَمَةِ فَتْحُ قُسْطَنْطِينِيَّةَ وَفَتْحُ قُسْطَنْطِينِيَّةَ خُرُوجُ الدَّجَّال» . رَوَاهُ أَبُو دَاوُد

Mu’adh b. Jabal reported God’s messenger as saying, “The flourishing state of Jerusalem will be when Yathrib is in ruins, the ruined state of Yathrib will be when the great war comes, the outbreak of the great war will be at the conquest of Constantinople, and the conquest of Constantinople when the dajjal comes forth.” Abu Dawud transmitted it.