The Prophet ﷺ said: 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 (Antichrist) comes forth. He (the Prophet) struck his thigh or his shoulder with his hand and said: This is as true as you are here or as you are sitting (meaning Mu'adh ibn Jabal). (Using translation from Abū Dāʾūd 4294)  

قَالَ رَسُولُ اللهِ ﷺ عُمْرَانُ بَيْتِ الْمَقْدِسِ خَرَابُ يَثْرِبَ وَخَرَابُ يَثْرِبَ خُرُوجُ الْمَلْحَمَةِ وَخُرُوجُ الْمَلْحَمَةِ فَتْحُ الْقُسْطَنْطِينِيَّةِ وَفَتْحُ الْقُسْطَنْطِينِيَّةِ خُرُوجُ الدَّجَّالِ ثُمَّ ضَرَبَ بِيَدِهِ عَلَى فَخِذِ الَّذِي حَدَّثَهُ أَوْ مَنْكِبِهِ ثُمَّ قَالَ إِنَّ هَذَا لَحَقٌّ كَمَا أَنَّكَ هَاهُنَا أَوْ كَمَا أَنَّكَ قَاعِدٌ يَعْنِي مُعَاذًا  

The Prophet ﷺ said: 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 (Antichrist) comes forth. He (the Prophet) struck his thigh or his shoulder with his hand and said: This is as true as you are here or as you are sitting (meaning Mu'adh ibn Jabal). (Using translation from Abū Dāʾūd 4294)   

قَالَ رَسُولُ اللهِ ﷺ عُمْرَانُ بَيْتِ الْمَقْدِسِ خَرَابُ يَثْرِبَ وَخَرَابُ يَثْرِبَ خُرُوجُ الْمَلْحَمَةِ وَخُرُوجُ الْمَلْحَمَةِ فَتْحُ الْقُسْطَنْطِينِيَّةِ وَفَتْحُ الْقُسْطَنْطِينِيَّةِ خُرُوجُ الدَّجَّالِ ثُمَّ ضَرَبَ عَلَى فَخِذِهِ أَوْ عَلَى مَنْكِبِهِ ثُمَّ قَالَ إِنَّ هَذَا لَحَقٌّ كَمَا أَنَّكَ قَاعِدٌ وَكَانَ مَكْحُولٌ يُحَدِّثُ بِهِ عَنْ جُبَيْرِ بْنِ نُفَيْرٍ عَنْ مَالِكِ بْنِ يَخَامِرَ عَنْ مُعَاذِ بْنِ جَبَلٍ عَنِ النَّبِيِّ ﷺ مِثْلَهُ  

[Machine] The Messenger of Allah ﷺ said, "The destruction of Jerusalem is the beginning of Yathrib's destruction, and the destruction of Yathrib is the emergence of the great battle, and the emergence of the great battle is the conquest of Constantinople, and the conquest of Constantinople is the emergence of the Dajjal."  

قَالَ رَسُولُ اللهِ ﷺ «عُمْرَانُ بَيْتِ الْمَقْدِسِ خَرَابُ يَثْرِبَ وَخَرَابُ يَثْرِبَ خُرُوجُ الْمَلْحَمَةِ وَخُرُوجُ الْمَلْحَمَةِ فَتْحُ الْقُسْطَنْطِينِيَّةِ وَفَتْحُ الْقُسْطَنْطِينِيَّةَ خُرُوجُ الدَّجَّالِ»  

"عُمْرَانُ بَيتِ المَقْدِسِ خَراب يَثْرب، وخراب يثرب خروجُ المَلحَمة، وخروجُ المَلَحَمَةِ فتحُ القسطنطينية، وفتح القسطنطينيِة خروج الدَّجَّال".